ui/ozone/public/gpu_platform_support.h

   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_OZONE_PUBLIC_GPU_PLATFORM_SUPPORT_H_
   6 #define UI_OZONE_PUBLIC_GPU_PLATFORM_SUPPORT_H_
   7
   8 #include "base/callback.h"
   9 #include "ipc/ipc_listener.h"
  10 #include "ipc/ipc_sender.h"
  11 #include "ui/ozone/ozone_base_export.h"
  12
  13 namespace IPC {
  14 class MessageFilter;
  15 }
  16
  17 namespace ui {
  18
  19 // Platform-specific object to support a GPU process.
  20 //
  21 // See GpuPlatformSupportHost for more context.
  22 class OZONE_BASE_EXPORT GpuPlatformSupport : public IPC::Listener {
  23  public:
  24   GpuPlatformSupport();
  25   ~GpuPlatformSupport() override;
  26
  27   // Called when the GPU process is spun up & channel established.
  28   virtual void OnChannelEstablished(IPC::Sender* sender) = 0;
  29
  30   virtual void RelinquishGpuResources(const base::Closure& callback) = 0;
  31
  32   virtual IPC::MessageFilter* GetMessageFilter() = 0;
  33 };
  34
  35 // Create a stub implementation.
  36 OZONE_BASE_EXPORT GpuPlatformSupport* CreateStubGpuPlatformSupport();
  37
  38 }  // namespace ui
  39
  40 #endif  // UI_OZONE_PUBLIC_GPU_PLATFORM_SUPPORT_H_