Rename WebFrameImpl to WebLocalFrameImpl.

public/web/WebFrame.h

Index: public/web/WebFrame.h
diff --git a/public/web/WebFrame.h b/public/web/WebFrame.h
index df277a89a1ef86005d4dea3161b4a3b96717093c..b3beb570103e165caee80c04e3aa22de4f59d1cb 100644
--- a/public/web/WebFrame.h
+++ b/public/web/WebFrame.h
@@ -67,6 +67,7 @@ class WebLocalFrame;
 class WebPerformance;
 class WebPermissionClient;
 class WebRange;
+class WebRemoteFrame;
 class WebSecurityOrigin;
 class WebSharedWorkerRepositoryClient;
 class WebString;
@@ -106,7 +107,10 @@ public:
     // Returns the number of live WebFrame objects, used for leak checking.
     BLINK_EXPORT static int instanceCount();
 
+    virtual bool isWebLocalFrame() const = 0;
     virtual WebLocalFrame* toWebLocalFrame() = 0;
+    virtual bool isWebRemoteFrame() const = 0;
+    virtual WebRemoteFrame* toWebRemoteFrame() = 0;
 
     // This method closes and deletes the WebFrame.
     virtual void close() = 0;