1 /*
2 * Copyright (C) 2010-2011 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "third_party/blink/renderer/core/exported/web_dev_tools_agent_impl.h"
32
33 #include <v8-inspector.h>
34 #include <memory>
35 #include <utility>
36
37 #include "third_party/blink/public/platform/platform.h"
38 #include "third_party/blink/public/platform/web_float_rect.h"
39 #include "third_party/blink/public/platform/web_rect.h"
40 #include "third_party/blink/public/platform/web_scoped_page_pauser.h"
41 #include "third_party/blink/public/platform/web_string.h"
42 #include "third_party/blink/public/web/web_settings.h"
43 #include "third_party/blink/public/web/web_view_client.h"
44 #include "third_party/blink/renderer/bindings/core/v8/script_controller.h"
45 #include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_core.h"
46 #include "third_party/blink/renderer/core/core_initializer.h"
47 #include "third_party/blink/renderer/core/core_probe_sink.h"
48 #include "third_party/blink/renderer/core/events/web_input_event_conversion.h"
49 #include "third_party/blink/renderer/core/exported/web_settings_impl.h"
50 #include "third_party/blink/renderer/core/exported/web_view_impl.h"
51 #include "third_party/blink/renderer/core/frame/local_frame.h"
52 #include "third_party/blink/renderer/core/frame/local_frame_view.h"
53 #include "third_party/blink/renderer/core/frame/settings.h"
54 #include "third_party/blink/renderer/core/frame/web_frame_widget_base.h"
55 #include "third_party/blink/renderer/core/frame/web_local_frame_impl.h"
56 #include "third_party/blink/renderer/core/inspector/dev_tools_emulator.h"
57 #include "third_party/blink/renderer/core/inspector/devtools_agent.h"
58 #include "third_party/blink/renderer/core/inspector/devtools_session.h"
59 #include "third_party/blink/renderer/core/inspector/inspected_frames.h"
60 #include "third_party/blink/renderer/core/inspector/inspector_animation_agent.h"
61 #include "third_party/blink/renderer/core/inspector/inspector_application_cache_agent.h"
62 #include "third_party/blink/renderer/core/inspector/inspector_audits_agent.h"
63 #include "third_party/blink/renderer/core/inspector/inspector_css_agent.h"
64 #include "third_party/blink/renderer/core/inspector/inspector_dom_agent.h"
65 #include "third_party/blink/renderer/core/inspector/inspector_dom_debugger_agent.h"
66 #include "third_party/blink/renderer/core/inspector/inspector_dom_snapshot_agent.h"
67 #include "third_party/blink/renderer/core/inspector/inspector_emulation_agent.h"
68 #include "third_party/blink/renderer/core/inspector/inspector_io_agent.h"
69 #include "third_party/blink/renderer/core/inspector/inspector_layer_tree_agent.h"
70 #include "third_party/blink/renderer/core/inspector/inspector_log_agent.h"
71 #include "third_party/blink/renderer/core/inspector/inspector_media_agent.h"
72 #include "third_party/blink/renderer/core/inspector/inspector_memory_agent.h"
73 #include "third_party/blink/renderer/core/inspector/inspector_network_agent.h"
74 #include "third_party/blink/renderer/core/inspector/inspector_overlay_agent.h"
75 #include "third_party/blink/renderer/core/inspector/inspector_page_agent.h"
76 #include "third_party/blink/renderer/core/inspector/inspector_performance_agent.h"
77 #include "third_party/blink/renderer/core/inspector/inspector_resource_container.h"
78 #include "third_party/blink/renderer/core/inspector/inspector_resource_content_loader.h"
79 #include "third_party/blink/renderer/core/inspector/inspector_task_runner.h"
80 #include "third_party/blink/renderer/core/inspector/main_thread_debugger.h"
81 #include "third_party/blink/renderer/core/layout/layout_view.h"
82 #include "third_party/blink/renderer/core/page/focus_controller.h"
83 #include "third_party/blink/renderer/core/page/page.h"
84 #include "third_party/blink/renderer/core/probe/core_probes.h"
85 #include "third_party/blink/renderer/platform/graphics/graphics_context.h"
86 #include "third_party/blink/renderer/platform/graphics/paint/paint_controller.h"
87 #include "third_party/blink/renderer/platform/instrumentation/tracing/trace_event.h"
88 #include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
89 #include "third_party/blink/renderer/platform/wtf/math_extras.h"
90 #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
91 #include "third_party/blink/renderer/platform/wtf/vector.h"
92
93 namespace blink {
94
95 namespace {
96
IsMainFrame(WebLocalFrameImpl * frame)97 bool IsMainFrame(WebLocalFrameImpl* frame) {
98 // TODO(dgozman): sometimes view->mainFrameImpl() does return null, even
99 // though |frame| is meant to be main frame. See http://crbug.com/526162.
100 return frame->ViewImpl() && !frame->Parent();
101 }
102
103 } // namespace
104
105 class ClientMessageLoopAdapter : public MainThreadDebugger::ClientMessageLoop {
106 public:
~ClientMessageLoopAdapter()107 ~ClientMessageLoopAdapter() override { instance_ = nullptr; }
108
EnsureMainThreadDebuggerCreated()109 static void EnsureMainThreadDebuggerCreated() {
110 if (instance_)
111 return;
112 std::unique_ptr<ClientMessageLoopAdapter> instance(
113 new ClientMessageLoopAdapter(
114 Platform::Current()->CreateNestedMessageLoopRunner()));
115 instance_ = instance.get();
116 MainThreadDebugger::Instance()->SetClientMessageLoop(std::move(instance));
117 }
118
ContinueProgram()119 static void ContinueProgram() {
120 // Release render thread if necessary.
121 if (instance_)
122 instance_->QuitNow();
123 }
124
PauseForPageWait(WebLocalFrameImpl * frame)125 static void PauseForPageWait(WebLocalFrameImpl* frame) {
126 if (instance_)
127 instance_->RunForPageWait(frame);
128 }
129
130 private:
ClientMessageLoopAdapter(std::unique_ptr<Platform::NestedMessageLoopRunner> message_loop)131 ClientMessageLoopAdapter(
132 std::unique_ptr<Platform::NestedMessageLoopRunner> message_loop)
133 : running_for_debug_break_(false),
134 running_for_page_wait_(false),
135 message_loop_(std::move(message_loop)) {
136 DCHECK(message_loop_.get());
137 }
138
Run(LocalFrame * frame)139 void Run(LocalFrame* frame) override {
140 if (running_for_debug_break_)
141 return;
142
143 running_for_debug_break_ = true;
144 if (!running_for_page_wait_)
145 RunLoop(WebLocalFrameImpl::FromFrame(frame));
146 }
147
RunForPageWait(WebLocalFrameImpl * frame)148 void RunForPageWait(WebLocalFrameImpl* frame) {
149 if (running_for_page_wait_)
150 return;
151
152 running_for_page_wait_ = true;
153 if (!running_for_debug_break_)
154 RunLoop(frame);
155 }
156
RunLoop(WebLocalFrameImpl * frame)157 void RunLoop(WebLocalFrameImpl* frame) {
158 // 0. Flush pending frontend messages.
159 WebDevToolsAgentImpl* agent = frame->DevToolsAgentImpl();
160 agent->FlushProtocolNotifications();
161
162 // 1. Disable input events.
163 WebFrameWidgetBase::SetIgnoreInputEvents(true);
164 for (auto* const view : WebViewImpl::AllInstances())
165 view->GetChromeClient().NotifyPopupOpeningObservers();
166
167 // 2. Disable active objects
168 page_pauser_ = WebScopedPagePauser::Create();
169
170 // 3. Process messages until quitNow is called.
171 message_loop_->Run();
172 }
173
QuitNow()174 void QuitNow() override {
175 if (running_for_debug_break_) {
176 running_for_debug_break_ = false;
177 if (!running_for_page_wait_)
178 DoQuit();
179 }
180 }
181
RunIfWaitingForDebugger(LocalFrame * frame)182 void RunIfWaitingForDebugger(LocalFrame* frame) override {
183 if (!running_for_page_wait_)
184 return;
185 running_for_page_wait_ = false;
186 if (!running_for_debug_break_)
187 DoQuit();
188 }
189
DoQuit()190 void DoQuit() {
191 // Undo steps (3), (2) and (1) from above.
192 // NOTE: This code used to be above right after the |mesasge_loop_->Run()|
193 // code, but it is moved here to support browser-side navigation.
194 message_loop_->QuitNow();
195 page_pauser_.reset();
196 WebFrameWidgetBase::SetIgnoreInputEvents(false);
197 }
198
199 bool running_for_debug_break_;
200 bool running_for_page_wait_;
201 std::unique_ptr<Platform::NestedMessageLoopRunner> message_loop_;
202 std::unique_ptr<WebScopedPagePauser> page_pauser_;
203
204 static ClientMessageLoopAdapter* instance_;
205 };
206
207 ClientMessageLoopAdapter* ClientMessageLoopAdapter::instance_ = nullptr;
208
AttachSession(DevToolsSession * session,bool restore)209 void WebDevToolsAgentImpl::AttachSession(DevToolsSession* session,
210 bool restore) {
211 if (!network_agents_.size())
212 Thread::Current()->AddTaskObserver(this);
213
214 ClientMessageLoopAdapter::EnsureMainThreadDebuggerCreated();
215 MainThreadDebugger* main_thread_debugger = MainThreadDebugger::Instance();
216 v8::Isolate* isolate = V8PerIsolateData::MainThreadIsolate();
217 InspectedFrames* inspected_frames = inspected_frames_.Get();
218
219 int context_group_id =
220 main_thread_debugger->ContextGroupId(inspected_frames->Root());
221 session->ConnectToV8(main_thread_debugger->GetV8Inspector(),
222 context_group_id);
223
224 InspectorDOMAgent* dom_agent = MakeGarbageCollected<InspectorDOMAgent>(
225 isolate, inspected_frames, session->V8Session());
226 session->Append(dom_agent);
227
228 auto* layer_tree_agent =
229 MakeGarbageCollected<InspectorLayerTreeAgent>(inspected_frames, this);
230 session->Append(layer_tree_agent);
231
232 InspectorNetworkAgent* network_agent =
233 MakeGarbageCollected<InspectorNetworkAgent>(inspected_frames, nullptr,
234 session->V8Session());
235 session->Append(network_agent);
236
237 auto* css_agent = MakeGarbageCollected<InspectorCSSAgent>(
238 dom_agent, inspected_frames, network_agent,
239 resource_content_loader_.Get(), resource_container_.Get());
240 session->Append(css_agent);
241
242 InspectorDOMDebuggerAgent* dom_debugger_agent =
243 MakeGarbageCollected<InspectorDOMDebuggerAgent>(isolate, dom_agent,
244 session->V8Session());
245 session->Append(dom_debugger_agent);
246
247 InspectorPerformanceAgent* performance_agent =
248 MakeGarbageCollected<InspectorPerformanceAgent>(inspected_frames);
249 session->Append(performance_agent);
250
251 session->Append(MakeGarbageCollected<InspectorDOMSnapshotAgent>(
252 inspected_frames, dom_debugger_agent));
253
254 session->Append(MakeGarbageCollected<InspectorAnimationAgent>(
255 inspected_frames, css_agent, session->V8Session()));
256
257 session->Append(MakeGarbageCollected<InspectorMemoryAgent>(inspected_frames));
258
259 session->Append(
260 MakeGarbageCollected<InspectorApplicationCacheAgent>(inspected_frames));
261
262 auto* page_agent = MakeGarbageCollected<InspectorPageAgent>(
263 inspected_frames, this, resource_content_loader_.Get(),
264 session->V8Session());
265 session->Append(page_agent);
266
267 session->Append(MakeGarbageCollected<InspectorLogAgent>(
268 &inspected_frames->Root()->GetPage()->GetConsoleMessageStorage(),
269 inspected_frames->Root()->GetPerformanceMonitor(), session->V8Session()));
270
271 InspectorOverlayAgent* overlay_agent =
272 MakeGarbageCollected<InspectorOverlayAgent>(
273 web_local_frame_impl_.Get(), inspected_frames, session->V8Session(),
274 dom_agent);
275 session->Append(overlay_agent);
276
277 session->Append(
278 MakeGarbageCollected<InspectorIOAgent>(isolate, session->V8Session()));
279
280 session->Append(MakeGarbageCollected<InspectorAuditsAgent>(
281 network_agent,
282 &inspected_frames->Root()->GetPage()->GetInspectorIssueStorage()));
283
284 session->Append(MakeGarbageCollected<InspectorMediaAgent>(inspected_frames));
285
286 // TODO(dgozman): we should actually pass the view instead of frame, but
287 // during remote->local transition we cannot access mainFrameImpl() yet, so
288 // we have to store the frame which will become the main frame later.
289 session->Append(MakeGarbageCollected<InspectorEmulationAgent>(
290 web_local_frame_impl_.Get()));
291
292 // Call session init callbacks registered from higher layers.
293 CoreInitializer::GetInstance().InitInspectorAgentSession(
294 session, include_view_agents_, dom_agent, inspected_frames,
295 web_local_frame_impl_->ViewImpl()->GetPage());
296
297 if (node_to_inspect_) {
298 overlay_agent->Inspect(node_to_inspect_);
299 node_to_inspect_ = nullptr;
300 }
301
302 network_agents_.insert(session, network_agent);
303 page_agents_.insert(session, page_agent);
304 overlay_agents_.insert(session, overlay_agent);
305 }
306
307 // static
CreateForFrame(WebLocalFrameImpl * frame)308 WebDevToolsAgentImpl* WebDevToolsAgentImpl::CreateForFrame(
309 WebLocalFrameImpl* frame) {
310 return MakeGarbageCollected<WebDevToolsAgentImpl>(frame, IsMainFrame(frame));
311 }
312
313 // static
CreateForWorker(WebLocalFrameImpl * frame)314 WebDevToolsAgentImpl* WebDevToolsAgentImpl::CreateForWorker(
315 WebLocalFrameImpl* frame) {
316 return MakeGarbageCollected<WebDevToolsAgentImpl>(frame, true);
317 }
318
WebDevToolsAgentImpl(WebLocalFrameImpl * web_local_frame_impl,bool include_view_agents)319 WebDevToolsAgentImpl::WebDevToolsAgentImpl(
320 WebLocalFrameImpl* web_local_frame_impl,
321 bool include_view_agents)
322 : web_local_frame_impl_(web_local_frame_impl),
323 probe_sink_(web_local_frame_impl_->GetFrame()->GetProbeSink()),
324 resource_content_loader_(
325 MakeGarbageCollected<InspectorResourceContentLoader>(
326 web_local_frame_impl_->GetFrame())),
327 inspected_frames_(MakeGarbageCollected<InspectedFrames>(
328 web_local_frame_impl_->GetFrame())),
329 resource_container_(
330 MakeGarbageCollected<InspectorResourceContainer>(inspected_frames_)),
331 include_view_agents_(include_view_agents) {
332 DCHECK(IsMainThread());
333 agent_ = MakeGarbageCollected<DevToolsAgent>(
334 this, inspected_frames_.Get(), probe_sink_.Get(),
335 web_local_frame_impl_->GetFrame()->GetInspectorTaskRunner(),
336 Platform::Current()->GetIOTaskRunner());
337 }
338
~WebDevToolsAgentImpl()339 WebDevToolsAgentImpl::~WebDevToolsAgentImpl() {}
340
Trace(Visitor * visitor)341 void WebDevToolsAgentImpl::Trace(Visitor* visitor) {
342 visitor->Trace(agent_);
343 visitor->Trace(network_agents_);
344 visitor->Trace(page_agents_);
345 visitor->Trace(overlay_agents_);
346 visitor->Trace(web_local_frame_impl_);
347 visitor->Trace(probe_sink_);
348 visitor->Trace(resource_content_loader_);
349 visitor->Trace(inspected_frames_);
350 visitor->Trace(resource_container_);
351 visitor->Trace(node_to_inspect_);
352 }
353
WillBeDestroyed()354 void WebDevToolsAgentImpl::WillBeDestroyed() {
355 DCHECK(web_local_frame_impl_->GetFrame());
356 DCHECK(inspected_frames_->Root()->View());
357 agent_->Dispose();
358 resource_content_loader_->Dispose();
359 }
360
BindReceiver(mojo::PendingAssociatedRemote<mojom::blink::DevToolsAgentHost> host_remote,mojo::PendingAssociatedReceiver<mojom::blink::DevToolsAgent> receiver)361 void WebDevToolsAgentImpl::BindReceiver(
362 mojo::PendingAssociatedRemote<mojom::blink::DevToolsAgentHost> host_remote,
363 mojo::PendingAssociatedReceiver<mojom::blink::DevToolsAgent> receiver) {
364 agent_->BindReceiver(
365 std::move(host_remote), std::move(receiver),
366 web_local_frame_impl_->GetTaskRunner(TaskType::kInternalInspector));
367 }
368
DetachSession(DevToolsSession * session)369 void WebDevToolsAgentImpl::DetachSession(DevToolsSession* session) {
370 network_agents_.erase(session);
371 page_agents_.erase(session);
372 overlay_agents_.erase(session);
373 if (!network_agents_.size())
374 Thread::Current()->RemoveTaskObserver(this);
375 }
376
InspectElement(const gfx::Point & point_in_local_root)377 void WebDevToolsAgentImpl::InspectElement(
378 const gfx::Point& point_in_local_root) {
379 WebFloatRect rect(point_in_local_root.x(), point_in_local_root.y(), 0, 0);
380 web_local_frame_impl_->FrameWidgetImpl()->Client()->ConvertWindowToViewport(
381 &rect);
382 gfx::PointF point(rect.x, rect.y);
383
384 HitTestRequest::HitTestRequestType hit_type =
385 HitTestRequest::kMove | HitTestRequest::kReadOnly |
386 HitTestRequest::kAllowChildFrameContent;
387 HitTestRequest request(hit_type);
388 WebMouseEvent dummy_event(WebInputEvent::kMouseDown,
389 WebInputEvent::kNoModifiers,
390 base::TimeTicks::Now());
391 dummy_event.SetPositionInWidget(point);
392 IntPoint transformed_point = FlooredIntPoint(
393 TransformWebMouseEvent(web_local_frame_impl_->GetFrameView(), dummy_event)
394 .PositionInRootFrame());
395 HitTestLocation location(
396 web_local_frame_impl_->GetFrameView()->ConvertFromRootFrame(
397 transformed_point));
398 HitTestResult result(request, location);
399 web_local_frame_impl_->GetFrame()->ContentLayoutObject()->HitTest(location,
400 result);
401 Node* node = result.InnerNode();
402 if (!node && web_local_frame_impl_->GetFrame()->GetDocument())
403 node = web_local_frame_impl_->GetFrame()->GetDocument()->documentElement();
404
405 if (!overlay_agents_.IsEmpty()) {
406 for (auto& it : overlay_agents_)
407 it.value->Inspect(node);
408 } else {
409 node_to_inspect_ = node;
410 }
411 }
412
DebuggerTaskStarted()413 void WebDevToolsAgentImpl::DebuggerTaskStarted() {
414 probe::WillStartDebuggerTask(probe_sink_);
415 }
416
DebuggerTaskFinished()417 void WebDevToolsAgentImpl::DebuggerTaskFinished() {
418 probe::DidFinishDebuggerTask(probe_sink_);
419 }
420
DidCommitLoadForLocalFrame(LocalFrame * frame)421 void WebDevToolsAgentImpl::DidCommitLoadForLocalFrame(LocalFrame* frame) {
422 resource_container_->DidCommitLoadForLocalFrame(frame);
423 resource_content_loader_->DidCommitLoadForLocalFrame(frame);
424 }
425
ScreencastEnabled()426 bool WebDevToolsAgentImpl::ScreencastEnabled() {
427 for (auto& it : page_agents_) {
428 if (it.value->ScreencastEnabled())
429 return true;
430 }
431 return false;
432 }
433
PageLayoutInvalidated(bool resized)434 void WebDevToolsAgentImpl::PageLayoutInvalidated(bool resized) {
435 for (auto& it : overlay_agents_)
436 it.value->PageLayoutInvalidated(resized);
437 }
438
DidShowNewWindow()439 void WebDevToolsAgentImpl::DidShowNewWindow() {
440 if (!wait_for_debugger_when_shown_)
441 return;
442 wait_for_debugger_when_shown_ = false;
443 WaitForDebugger();
444 }
445
WaitForDebuggerWhenShown()446 void WebDevToolsAgentImpl::WaitForDebuggerWhenShown() {
447 wait_for_debugger_when_shown_ = true;
448 }
449
WaitForDebugger()450 void WebDevToolsAgentImpl::WaitForDebugger() {
451 ClientMessageLoopAdapter::PauseForPageWait(web_local_frame_impl_);
452 }
453
IsInspectorLayer(const cc::Layer * layer)454 bool WebDevToolsAgentImpl::IsInspectorLayer(const cc::Layer* layer) {
455 for (auto& it : overlay_agents_) {
456 if (it.value->IsInspectorLayer(layer))
457 return true;
458 }
459 return false;
460 }
461
EvaluateInOverlayForTesting(const String & script)462 String WebDevToolsAgentImpl::EvaluateInOverlayForTesting(const String& script) {
463 String result;
464 for (auto& it : overlay_agents_)
465 result = it.value->EvaluateInOverlayForTest(script);
466 return result;
467 }
468
UpdateOverlaysPrePaint()469 void WebDevToolsAgentImpl::UpdateOverlaysPrePaint() {
470 for (auto& it : overlay_agents_)
471 it.value->UpdatePrePaint();
472 }
473
PaintOverlays(GraphicsContext & context)474 void WebDevToolsAgentImpl::PaintOverlays(GraphicsContext& context) {
475 DCHECK(RuntimeEnabledFeatures::CompositeAfterPaintEnabled());
476 for (auto& it : overlay_agents_)
477 it.value->PaintOverlay(context);
478 }
479
DispatchBufferedTouchEvents()480 void WebDevToolsAgentImpl::DispatchBufferedTouchEvents() {
481 for (auto& it : overlay_agents_)
482 it.value->DispatchBufferedTouchEvents();
483 }
484
HandleInputEvent(const WebInputEvent & event)485 WebInputEventResult WebDevToolsAgentImpl::HandleInputEvent(
486 const WebInputEvent& event) {
487 for (auto& it : overlay_agents_) {
488 auto result = it.value->HandleInputEvent(event);
489 if (result != WebInputEventResult::kNotHandled)
490 return result;
491 }
492 return WebInputEventResult::kNotHandled;
493 }
494
NavigationInitiatorInfo(LocalFrame * frame)495 String WebDevToolsAgentImpl::NavigationInitiatorInfo(LocalFrame* frame) {
496 for (auto& it : network_agents_) {
497 String initiator = it.value->NavigationInitiatorInfo(frame);
498 if (!initiator.IsNull())
499 return initiator;
500 }
501 return String();
502 }
503
FlushProtocolNotifications()504 void WebDevToolsAgentImpl::FlushProtocolNotifications() {
505 agent_->FlushProtocolNotifications();
506 }
507
WillProcessTask(const base::PendingTask & pending_task,bool was_blocked_or_low_priority)508 void WebDevToolsAgentImpl::WillProcessTask(
509 const base::PendingTask& pending_task,
510 bool was_blocked_or_low_priority) {
511 if (network_agents_.IsEmpty())
512 return;
513 ThreadDebugger::IdleFinished(V8PerIsolateData::MainThreadIsolate());
514 }
515
DidProcessTask(const base::PendingTask & pending_task)516 void WebDevToolsAgentImpl::DidProcessTask(
517 const base::PendingTask& pending_task) {
518 if (network_agents_.IsEmpty())
519 return;
520 ThreadDebugger::IdleStarted(V8PerIsolateData::MainThreadIsolate());
521 FlushProtocolNotifications();
522 }
523
524 } // namespace blink
525