Revert of Move content's shell connections to the IO thread

content/gpu/gpu_child_thread.h

 // Copyright (c) 2012 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.
 
 #ifndef CONTENT_GPU_GPU_CHILD_THREAD_H_
 #define CONTENT_GPU_GPU_CHILD_THREAD_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <queue>
 #include <string>
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/field_trial.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "content/child/child_thread_impl.h"
+#include "content/common/process_control.mojom.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "gpu/config/gpu_info.h"
 #include "gpu/ipc/service/gpu_channel.h"
 #include "gpu/ipc/service/gpu_channel_manager.h"
 #include "gpu/ipc/service/gpu_channel_manager_delegate.h"
 #include "gpu/ipc/service/gpu_config.h"
 #include "gpu/ipc/service/x_util.h"
+#include "mojo/public/cpp/bindings/binding_set.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace gpu {
 class GpuMemoryBufferFactory;
 class SyncPointManager;
 }
 
 namespace media {
 class MediaService;
 }
 
 namespace sandbox {
 class TargetServices;
 }
 
 namespace content {
+class GpuProcessControlImpl;
 class GpuWatchdogThread;
 struct EstablishChannelParams;
 
 // The main thread of the GPU child process. There will only ever be one of
 // these per process. It does process initialization and shutdown. It forwards
 // IPC messages to gpu::GpuChannelManager, which is responsible for issuing
 // rendering commands to the GPU.
 class GpuChildThread : public ChildThreadImpl,
                        public gpu::GpuChannelManagerDelegate,
                        public base::FieldTrialList::Observer {
@@ skipping 18 matching lines @@
 
   void Shutdown() override;
 
   void Init(const base::Time& process_start_time);
   void StopWatchdog();
 
   gpu::GpuPreferences gpu_preferences() { return gpu_preferences_; }
 
  private:
   // ChildThreadImpl:.
-  void AddConnectionFilters(MojoShellConnection* connection) override;
   bool Send(IPC::Message* msg) override;
   bool OnControlMessageReceived(const IPC::Message& msg) override;
   bool OnMessageReceived(const IPC::Message& msg) override;
+  bool OnConnect(shell::Connection* connection) override;
+  shell::InterfaceRegistry* GetInterfaceRegistryForConnection() override;
+  shell::InterfaceProvider* GetInterfaceProviderForConnection() override;
 
   // gpu::GpuChannelManagerDelegate:
   void SetActiveURL(const GURL& url) override;
   void DidCreateOffscreenContext(const GURL& active_url) override;
   void DidDestroyChannel(int client_id) override;
   void DidDestroyOffscreenContext(const GURL& active_url) override;
   void DidLoseContext(bool offscreen,
                       gpu::error::ContextLostReason reason,
                       const GURL& active_url) override;
   void GpuMemoryUmaStats(const gpu::GPUMemoryUmaStats& params) override;
@@ skipping 28 matching lines @@
   void OnLoadedShader(const std::string& shader);
   void OnDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                                 int client_id,
                                 const gpu::SyncToken& sync_token);
 #if defined(OS_ANDROID)
   void OnWakeUpGpu();
   void OnDestroyingVideoSurface(int surface_id);
 #endif
   void OnLoseAllContexts();
 
+  void BindProcessControlRequest(
+      mojo::InterfaceRequest<mojom::ProcessControl> request);
+
   gpu::GpuPreferences gpu_preferences_;
 
   // Set this flag to true if a fatal error occurred before we receive the
   // OnInitialize message, in which case we just declare ourselves DOA.
   bool dead_on_arrival_;
   base::Time process_start_time_;
   scoped_refptr<GpuWatchdogThread> watchdog_thread_;
 
 #if defined(OS_WIN)
   // Windows specific client sandbox interface.
@@ skipping 12 matching lines @@
 
   // Error messages collected in gpu_main() before the thread is created.
   DeferredMessages deferred_messages_;
 
   // Whether the GPU thread is running in the browser process.
   bool in_browser_process_;
 
   // The gpu::GpuMemoryBufferFactory instance used to allocate GpuMemoryBuffers.
   gpu::GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
 
+  // Process control for Mojo application hosting.
+  std::unique_ptr<GpuProcessControlImpl> process_control_;
+
+  // Bindings to the mojom::ProcessControl impl.
+  mojo::BindingSet<mojom::ProcessControl> process_control_bindings_;
+
+  base::Closure resume_interface_bindings_callback_;
+
   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_