content/public/browser/gpu_data_manager_observer.h

   1 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_OBSERVER_H_
   6 #define CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_OBSERVER_H_
   7
   8 #include "base/process/kill.h"
   9 #include "content/common/content_export.h"
  10 #include "content/public/common/gpu_memory_stats.h"
  11 #include "content/public/common/three_d_api_types.h"
  12
  13 class GURL;
  14
  15 namespace content {
  16
  17 // Observers can register themselves via GpuDataManager::AddObserver, and
  18 // can un-register with GpuDataManager::RemoveObserver.
  19 class CONTENT_EXPORT GpuDataManagerObserver {
  20  public:
  21   // Called for any observers whenever there is a GPU info update.
  22   virtual void OnGpuInfoUpdate() {}
  23
  24   // Called for any observers whenever there is a GPU video memory update.
  25   virtual void OnVideoMemoryUsageStatsUpdate(
  26       const GPUVideoMemoryUsageStats& video_memory_usage_stats) {}
  27
  28   // Indicates that client 3D APIs (Pepper 3D, WebGL) were just blocked on the
  29   // given page, specifically because the GPU was reset recently.
  30   virtual void DidBlock3DAPIs(const GURL& top_origin_url,
  31                               int render_process_id,
  32                               int render_frame_id,
  33                               ThreeDAPIType requester) {}
  34
  35   // Called for any observer when the GPU process crashed.
  36   virtual void OnGpuProcessCrashed(base::TerminationStatus exit_code) {}
  37
  38  protected:
  39   virtual ~GpuDataManagerObserver() {}
  40 };
  41
  42 };  // namespace content
  43
  44 #endif  // CONTENT_PUBLIC_BROWSER_GPU_DATA_MANAGER_OBSERVER_H_