1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_GL_GPU_SWITCHING_OBSERVER_H_ 6 #define UI_GL_GPU_SWITCHING_OBSERVER_H_ 7 8 #include "ui/gl/gl_export.h" 9 #include "ui/gl/gpu_preference.h" 10 11 namespace ui { 12 13 class GL_EXPORT GpuSwitchingObserver { 14 public: 15 // Called for any observer when the system switches to a different GPU. OnGpuSwitched(gl::GpuPreference active_gpu_heuristic)16 virtual void OnGpuSwitched(gl::GpuPreference active_gpu_heuristic) {} 17 18 // Called for any observer when a monitor is plugged in. OnDisplayAdded()19 virtual void OnDisplayAdded() {} 20 21 // Called for any observer when a monitor is unplugged. OnDisplayRemoved()22 virtual void OnDisplayRemoved() {} 23 }; 24 25 } // namespace ui 26 27 #endif // UI_GL_GPU_SWITCHING_OBSERVER_H_ 28