Merge 101221 - Reland 101111 - Only deliver extension messages to contexts that care.

chrome/renderer/extensions/renderer_extension_bindings.h

Index: chrome/renderer/extensions/renderer_extension_bindings.h
===================================================================
--- chrome/renderer/extensions/renderer_extension_bindings.h	(revision 103262)
+++ chrome/renderer/extensions/renderer_extension_bindings.h	(working copy)
@@ -9,7 +9,6 @@
 #include <string>
 
 class ExtensionDispatcher;
-class GURL;
 class RenderView;
 
 namespace v8 {
@@ -25,6 +24,12 @@
 
   // Creates an instance of the extension.
   static v8::Extension* Get(ExtensionDispatcher* dispatcher);
+
+  // Delivers a message sent using content script messaging. If
+  // restrict_to_render_view is specified, only contexts in that render view
+  // will receive the message.
+  static void DeliverMessage(int target_port_id, const std::string& message,
+                             RenderView* restrict_to_render_view);
 };
 
 #endif  // CHROME_RENDERER_EXTENSIONS_RENDERER_EXTENSION_BINDINGS_H_