Introduce CompositorDependencies for RenderWidgetCompositor.

content/renderer/render_thread_impl.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_RENDERER_RENDER_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/cancelable_callback.h"
 #include "base/memory/memory_pressure_listener.h"
 #include "base/metrics/user_metrics_action.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
 #include "base/threading/thread_checker.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "content/child/child_thread.h"
 #include "content/common/content_export.h"
 #include "content/common/frame_replication_state.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/gpu_result_codes.h"
 #include "content/public/renderer/render_thread.h"
+#include "content/renderer/gpu/compositor_dependencies.h"
 #include "net/base/network_change_notifier.h"
 #include "third_party/WebKit/public/platform/WebConnectionType.h"
 #include "ui/gfx/native_widget_types.h"
 
 #if defined(OS_MACOSX)
 #include "third_party/WebKit/public/web/mac/WebScrollbarTheme.h"
 #endif
 
 class GrContext;
 class SkBitmap;
@@ skipping 71 matching lines @@
 
 // The RenderThreadImpl class represents a background thread where RenderView
 // instances live.  The RenderThread supports an API that is used by its
 // consumer to talk indirectly to the RenderViews and supporting objects.
 // Likewise, it provides an API for the RenderViews to talk back to the main
 // process (i.e., their corresponding WebContentsImpl).
 //
 // Most of the communication occurs in the form of IPC messages.  They are
 // routed to the RenderThread according to the routing IDs of the messages.
 // The routing IDs correspond to RenderView instances.
-class CONTENT_EXPORT RenderThreadImpl : public RenderThread,
-                                        public ChildThread,
-                                        public GpuChannelHostFactory {
+class CONTENT_EXPORT RenderThreadImpl
+    : public RenderThread,
+      public ChildThread,
+      public GpuChannelHostFactory,
+      NON_EXPORTED_BASE(public CompositorDependencies) {
  public:
   static RenderThreadImpl* current();
 
   RenderThreadImpl();
   // Constructor that's used when running in single process mode.
   explicit RenderThreadImpl(const std::string& channel_name);
   // Constructor that's used in RendererMain.
   explicit RenderThreadImpl(scoped_ptr<base::MessageLoop> main_message_loop);
   ~RenderThreadImpl() override;
   void Shutdown() override;
@@ skipping 37 matching lines @@
   void UpdateHistograms(int sequence_number) override;
   int PostTaskToAllWebWorkers(const base::Closure& closure) override;
   bool ResolveProxy(const GURL& url, std::string* proxy_list) override;
   base::WaitableEvent* GetShutdownEvent() override;
 #if defined(OS_WIN)
   virtual void PreCacheFont(const LOGFONT& log_font) override;
   virtual void ReleaseCachedFonts() override;
 #endif
   ServiceRegistry* GetServiceRegistry() override;
 
+  // CompositorDependencies implementation.
+  bool IsImplSidePaintingEnabled() override;
+  bool IsGpuRasterizationForced() override;
+  bool IsGpuRasterizationEnabled() override;
+  bool IsLcdTextEnabled() override;
+  bool IsDistanceFieldTextEnabled() override;
+  bool IsZeroCopyEnabled() override;
+  bool IsOneCopyEnabled() override;
+  uint32 GetImageTextureTarget() override;
+  scoped_refptr<base::SingleThreadTaskRunner>
+  GetCompositorMainThreadTaskRunner() override;
+  scoped_refptr<base::SingleThreadTaskRunner>
+  GetCompositorImplThreadTaskRunner() override;
+  gpu::GpuMemoryBufferManager* GetGpuMemoryBufferManager() override;
+  RendererScheduler* GetRendererScheduler() override;
+  cc::ContextProvider* GetSharedMainThreadContextProvider() override;
+  scoped_ptr<cc::BeginFrameSource> CreateExternalBeginFrameSource(
+      int routing_id) override;
+
   // Synchronously establish a channel to the GPU plugin if not previously
   // established or if it has been lost (for example if the GPU plugin crashed).
   // If there is a pending asynchronous request, it will be completed by the
   // time this routine returns.
   GpuChannelHost* EstablishGpuChannelSync(CauseForGpuLaunch);
 
 
   // These methods modify how the next message is sent.  Normally, when sending
   // a synchronous message that runs a nested message loop, we need to suspend
   // callbacks into WebKit.  This involves disabling timers and deferring
   // resource loads.  However, there are exceptions when we need to customize
   // the behavior.
   void DoNotSuspendWebKitSharedTimer();
   void DoNotNotifyWebKitOfModalLoop();
 
   // True if we are running layout tests. This currently disables forwarding
   // various status messages to the console, skips network error pages, and
   // short circuits size update and focus events.
   bool layout_test_mode() const {
     return layout_test_mode_;
   }
   void set_layout_test_mode(bool layout_test_mode) {
     layout_test_mode_ = layout_test_mode;
   }
 
-  RendererScheduler* renderer_scheduler() const {
-    DCHECK(renderer_scheduler_);
-    return renderer_scheduler_.get();
-  }
-
   RendererBlinkPlatformImpl* blink_platform_impl() const {
     DCHECK(blink_platform_impl_);
     return blink_platform_impl_.get();
   }
 
-  scoped_refptr<base::SingleThreadTaskRunner>
-  main_thread_compositor_task_runner() const {
-    return main_thread_compositor_task_runner_;
-  }
-
   CompositorForwardingMessageFilter* compositor_message_filter() const {
     return compositor_message_filter_.get();
   }
 
   InputHandlerManager* input_handler_manager() const {
     return input_handler_manager_.get();
   }
 
-  // Will be NULL if threaded compositing has not been enabled.
+  // Will be null if threaded compositing has not been enabled.
   scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy() const {
     return compositor_message_loop_proxy_;
   }
 
-  bool is_gpu_rasterization_enabled() const {
-    return is_gpu_rasterization_enabled_;
-  }
-
-  bool is_gpu_rasterization_forced() const {
-    return is_gpu_rasterization_forced_;
-  }
-
-  bool is_impl_side_painting_enabled() const {
-    return is_impl_side_painting_enabled_;
-  }
-
-  bool is_lcd_text_enabled() const { return is_lcd_text_enabled_; }
-
-  bool is_distance_field_text_enabled() const {
-    return is_distance_field_text_enabled_;
-  }
-
-  bool is_zero_copy_enabled() const { return is_zero_copy_enabled_; }
-
-  bool is_one_copy_enabled() const { return is_one_copy_enabled_; }
-
-  unsigned use_image_texture_target() const {
-    return use_image_texture_target_;
-  }
-
   AppCacheDispatcher* appcache_dispatcher() const {
     return appcache_dispatcher_.get();
   }
 
   DomStorageDispatcher* dom_storage_dispatcher() const {
     return dom_storage_dispatcher_.get();
   }
 
   EmbeddedWorkerDispatcher* embedded_worker_dispatcher() const {
     return embedded_worker_dispatcher_.get();
@@ skipping 309 matching lines @@
 
 #if defined(ENABLE_WEBRTC)
   scoped_ptr<WebRTCIdentityService> webrtc_identity_service_;
 #endif
 
   scoped_ptr<MemoryObserver> memory_observer_;
 
   scoped_refptr<base::SingleThreadTaskRunner>
       main_thread_compositor_task_runner_;
 
-  // Compositor settings
+  // Compositor settings.
   bool is_gpu_rasterization_enabled_;
   bool is_gpu_rasterization_forced_;
   bool is_impl_side_painting_enabled_;
   bool is_lcd_text_enabled_;
   bool is_distance_field_text_enabled_;
   bool is_zero_copy_enabled_;
   bool is_one_copy_enabled_;
   unsigned use_image_texture_target_;
 
   std::map<int, mojo::MessagePipeHandle> pending_render_frame_connects_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_