mus/gpu: Introduce the GpuServiceHost mojom interface.

services/ui/gpu/gpu_service_internal.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "services/ui/gpu/gpu_service_internal.h"
 
 #include "base/bind.h"
 #include "base/memory/shared_memory.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
@@ skipping 43 matching lines @@
   gpu_channel_manager_.reset();
   owned_sync_point_manager_.reset();
 
   // Signal this event before destroying the child process.  That way all
   // background threads can cleanup.
   // For example, in the renderer the RenderThread instances will be able to
   // notice shutdown before the render process begins waiting for them to exit.
   shutdown_event_.Signal();
 }
 
+void GpuServiceInternal::InitializeWithHost(mojom::GpuServiceHostPtr gpu_host) {
+  DCHECK(CalledOnValidThread());
+  DCHECK(!gpu_host_);
+  gpu_host_ = std::move(gpu_host);
+  gpu_info_.video_decode_accelerator_capabilities =
+      media::GpuVideoDecodeAccelerator::GetCapabilities(gpu_preferences_);
+  gpu_info_.video_encode_accelerator_supported_profiles =
+      media::GpuVideoEncodeAccelerator::GetSupportedProfiles(gpu_preferences_);
+  gpu_info_.jpeg_decode_accelerator_supported =
+      media::GpuJpegDecodeAccelerator::IsSupported();
+  gpu_host_->DidInitialize(gpu_info_);
+
+  DCHECK(!owned_sync_point_manager_);
+  const bool allow_threaded_wait = false;
+  owned_sync_point_manager_.reset(
+      new gpu::SyncPointManager(allow_threaded_wait));
+
+  // Defer creation of the render thread. This is to prevent it from handling
+  // IPC messages before the sandbox has been enabled and all other necessary
+  // initialization has succeeded.
+  gpu_channel_manager_.reset(new gpu::GpuChannelManager(
+      gpu_preferences_, this, watchdog_thread_.get(),
+      base::ThreadTaskRunnerHandle::Get().get(), io_runner_.get(),
+      &shutdown_event_, owned_sync_point_manager_.get(),
+      gpu_memory_buffer_factory_));
+
+  media_gpu_channel_manager_.reset(
+      new media::MediaGpuChannelManager(gpu_channel_manager_.get()));
+}
+
 void GpuServiceInternal::Bind(mojom::GpuServiceInternalRequest request) {
   bindings_.AddBinding(this, std::move(request));
 }
 
 void GpuServiceInternal::CreateGpuMemoryBuffer(
     gfx::GpuMemoryBufferId id,
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage,
     int client_id,
     gpu::SurfaceHandle surface_handle,
     const CreateGpuMemoryBufferCallback& callback) {
   DCHECK(CalledOnValidThread());
   callback.Run(gpu_memory_buffer_factory_->CreateGpuMemoryBuffer(
       id, size, format, usage, client_id, surface_handle));
 }
 
 void GpuServiceInternal::DestroyGpuMemoryBuffer(
     gfx::GpuMemoryBufferId id,
     int client_id,
     const gpu::SyncToken& sync_token) {
   DCHECK(CalledOnValidThread());
   if (gpu_channel_manager_)
     gpu_channel_manager_->DestroyGpuMemoryBuffer(id, client_id, sync_token);
 }
 
 void GpuServiceInternal::DidCreateOffscreenContext(const GURL& active_url) {
-  NOTIMPLEMENTED();
+  gpu_host_->DidCreateOffscreenContext(active_url);
 }
 
 void GpuServiceInternal::DidDestroyChannel(int client_id) {
   media_gpu_channel_manager_->RemoveChannel(client_id);
-  NOTIMPLEMENTED();
+  gpu_host_->DidDestroyChannel(client_id);
 }
 
 void GpuServiceInternal::DidDestroyOffscreenContext(const GURL& active_url) {
-  NOTIMPLEMENTED();
+  gpu_host_->DidDestroyOffscreenContext(active_url);
 }
 
 void GpuServiceInternal::DidLoseContext(bool offscreen,
                                         gpu::error::ContextLostReason reason,
                                         const GURL& active_url) {
-  NOTIMPLEMENTED();
+  gpu_host_->DidLoseContext(offscreen, reason, active_url);
 }
 
 void GpuServiceInternal::StoreShaderToDisk(int client_id,
                                            const std::string& key,
                                            const std::string& shader) {
-  NOTIMPLEMENTED();
+  gpu_host_->StoreShaderToDisk(client_id, key, shader);
 }
 
 #if defined(OS_WIN)
 void GpuServiceInternal::SendAcceleratedSurfaceCreatedChildWindow(
     gpu::SurfaceHandle parent_window,
     gpu::SurfaceHandle child_window) {
   ::SetParent(child_window, parent_window);
 }
 #endif
 
 void GpuServiceInternal::SetActiveURL(const GURL& url) {
   // TODO(penghuang): implement this function.
 }
 
-void GpuServiceInternal::Initialize() {
-  DCHECK(CalledOnValidThread());
-  gpu_info_.video_decode_accelerator_capabilities =
-      media::GpuVideoDecodeAccelerator::GetCapabilities(gpu_preferences_);
-  gpu_info_.video_encode_accelerator_supported_profiles =
-      media::GpuVideoEncodeAccelerator::GetSupportedProfiles(gpu_preferences_);
-  gpu_info_.jpeg_decode_accelerator_supported =
-      media::GpuJpegDecodeAccelerator::IsSupported();
-
-  DCHECK(!owned_sync_point_manager_);
-  const bool allow_threaded_wait = false;
-  owned_sync_point_manager_.reset(
-      new gpu::SyncPointManager(allow_threaded_wait));
-
-  // Defer creation of the render thread. This is to prevent it from handling
-  // IPC messages before the sandbox has been enabled and all other necessary
-  // initialization has succeeded.
-  gpu_channel_manager_.reset(new gpu::GpuChannelManager(
-      gpu_preferences_, this, watchdog_thread_.get(),
-      base::ThreadTaskRunnerHandle::Get().get(), io_runner_.get(),
-      &shutdown_event_, owned_sync_point_manager_.get(),
-      gpu_memory_buffer_factory_));
-
-  media_gpu_channel_manager_.reset(
-      new media::MediaGpuChannelManager(gpu_channel_manager_.get()));
-}
-
 void GpuServiceInternal::EstablishGpuChannel(
     int32_t client_id,
     uint64_t client_tracing_id,
     bool is_gpu_host,
     const EstablishGpuChannelCallback& callback) {
   DCHECK(CalledOnValidThread());
 
   if (!gpu_channel_manager_) {
     callback.Run(mojo::ScopedMessagePipeHandle());
     return;
   }
 
   const bool preempts = is_gpu_host;
   const bool allow_view_command_buffers = is_gpu_host;
   const bool allow_real_time_streams = is_gpu_host;
   mojo::ScopedMessagePipeHandle channel_handle;
   IPC::ChannelHandle handle = gpu_channel_manager_->EstablishChannel(
       client_id, client_tracing_id, preempts, allow_view_command_buffers,
       allow_real_time_streams);
   channel_handle.reset(handle.mojo_handle);
   media_gpu_channel_manager_->AddChannel(client_id);
   callback.Run(std::move(channel_handle));
 }
 
 }  // namespace ui