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

third_party/WebKit/public/web/WebRemoteFrame.h

Index: third_party/WebKit/public/web/WebRemoteFrame.h
diff --git a/third_party/WebKit/public/web/WebRemoteFrame.h b/third_party/WebKit/public/web/WebRemoteFrame.h
index 65638c47a4b76f8f98574757bfd2c8faab8b8348..04aba625d7fad859aec92eabf21a194c66e47047 100644
--- a/third_party/WebKit/public/web/WebRemoteFrame.h
+++ b/third_party/WebKit/public/web/WebRemoteFrame.h
@@ -11,6 +11,7 @@
 namespace blink {
 
 enum class WebTreeScopeType;
+class ServiceRegistry;
 class WebFrameClient;
 class WebRemoteFrameClient;
 
@@ -23,7 +24,7 @@ public:
     // insertion order, so the local child version takes a previous sibling to
     // ensure that it is inserted into the correct location in the list of
     // children.
-    virtual WebLocalFrame* createLocalChild(WebTreeScopeType, const WebString& name, const WebString& uniqueName, WebSandboxFlags, WebFrameClient*, WebFrame* previousSibling, const WebFrameOwnerProperties&, WebFrame* opener) = 0;
+    virtual WebLocalFrame* createLocalChild(WebTreeScopeType, const WebString& name, const WebString& uniqueName, WebSandboxFlags, WebFrameClient*, WebFrame* previousSibling, const WebFrameOwnerProperties&, WebFrame* opener, ServiceRegistry* = nullptr) = 0;
 
     virtual WebRemoteFrame* createRemoteChild(WebTreeScopeType, const WebString& name, const WebString& uniqueName, WebSandboxFlags, WebRemoteFrameClient*, WebFrame* opener) = 0;