Rewire Android WebView's compositor changed signal.

android_webview/browser/hardware_renderer.h

 // Copyright 2014 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 ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_
 #define ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_
 
 #include <memory>
 
+#include "android_webview/browser/compositor_id.h"
 #include "android_webview/browser/render_thread_manager.h"
 #include "base/macros.h"
 #include "cc/surfaces/display_client.h"
 #include "cc/surfaces/surface_factory_client.h"
 #include "cc/surfaces/surface_id.h"
 
 struct AwDrawGLInfo;
 
 namespace cc {
 class Display;
@@ skipping 24 matching lines @@
   // cc::DisplayClient overrides.
   void DisplayOutputSurfaceLost() override {}
   void DisplaySetMemoryPolicy(const cc::ManagedMemoryPolicy& policy) override {}
 
   // cc::SurfaceFactoryClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;
   void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override;
 
   void ReturnResourcesInChildFrame();
   void ReturnResourcesToCompositor(const cc::ReturnedResourceArray& resources,
-                                   uint32_t compositor_routing_id,
+                                   const CompositorID& compositor_id,
                                    uint32_t output_surface_id);
 
   RenderThreadManager* render_thread_manager_;
 
   typedef void* EGLContext;
   EGLContext last_egl_context_;
 
   // Information about last delegated frame.
   gfx::Size frame_size_;
 
   // Infromation from UI on last commit.
   gfx::Vector2d scroll_offset_;
 
   // This holds the last ChildFrame received. Contains the frame info of the
   // last frame. The |frame| member may be null if it's already submitted to
   // SurfaceFactory.
   std::unique_ptr<ChildFrame> child_frame_;
 
   scoped_refptr<AwGLSurface> gl_surface_;
 
   std::unique_ptr<cc::SurfaceManager> surface_manager_;
   std::unique_ptr<cc::Display> display_;
   std::unique_ptr<cc::SurfaceFactory> surface_factory_;
   std::unique_ptr<cc::SurfaceIdAllocator> surface_id_allocator_;
   cc::SurfaceId child_id_;
   cc::SurfaceId root_id_;
-  uint32_t compositor_id_;
+  CompositorID compositor_id_;
   // HardwareRenderer guarantees resources are returned in the order of
   // output_surface_id, and resources for old output surfaces are dropped.
   uint32_t last_committed_output_surface_id_;
   uint32_t last_submitted_output_surface_id_;
 
   // This is owned by |display_|.
   ParentOutputSurface* output_surface_;
 
   DISALLOW_COPY_AND_ASSIGN(HardwareRenderer);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_HARDWARE_RENDERER_H_