Add blink::ServiceRegistry and expose it from LocalFrame and Platform.

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index 2c05ea6608505a209483f954d3607f8c34c928b5..8b43867636ee383b1c988abfc27533b0f444afdc 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -49,6 +49,7 @@ class WebThreadImplForRendererScheduler;
 }
 
 namespace content {
+class BlinkServiceRegistryImpl;
 class DeviceLightEventPump;
 class DeviceMotionEventPump;
 class DeviceOrientationEventPump;
@@ -57,6 +58,7 @@ class PlatformEventObserverBase;
 class QuotaMessageFilter;
 class RendererClipboardDelegate;
 class RenderView;
+class ServiceRegistry;
 class ThreadSafeSender;
 class WebClipboardImpl;
 class WebDatabaseObserverImpl;
@@ -64,8 +66,8 @@ class WebFileSystemImpl;
 
 class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
  public:
-  explicit RendererBlinkPlatformImpl(
-      scheduler::RendererScheduler* renderer_scheduler);
+  RendererBlinkPlatformImpl(scheduler::RendererScheduler* renderer_scheduler,
+                            base::WeakPtr<ServiceRegistry> service_registry);
   ~RendererBlinkPlatformImpl() override;
 
   // Shutdown must be called just prior to shutting down blink.
@@ -178,8 +180,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
   blink::WebString convertIDNToUnicode(
       const blink::WebString& host,
       const blink::WebString& languages) override;
-  void connectToRemoteService(const char* name,
-                              mojo::ScopedMessagePipeHandle handle) override;
+  blink::ServiceRegistry* serviceRegistry() override;
   void startListening(blink::WebPlatformEventType,
                       blink::WebPlatformEventListener*) override;
   void stopListening(blink::WebPlatformEventType) override;
@@ -299,6 +300,8 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
 
   scoped_ptr<LocalStorageCachedAreas> local_storage_cached_areas_;
 
+  scoped_ptr<BlinkServiceRegistryImpl> blink_service_registry_;
+
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };