Changed the extension.connect() API not to broadcast to all tabs. Added a

chrome/renderer/extensions/bindings_utils.h

Index: chrome/renderer/extensions/bindings_utils.h
diff --git a/chrome/renderer/extensions/bindings_utils.h b/chrome/renderer/extensions/bindings_utils.h
index 2c81b0cb6fd99ae5565a6261a05c750d6238a782..324a73cc13a0522dc56736aead4c37dfa17a9391 100644
--- a/chrome/renderer/extensions/bindings_utils.h
+++ b/chrome/renderer/extensions/bindings_utils.h
@@ -65,11 +65,16 @@ struct ContextInfo {
   // was injected in.  This is empty if the context is not a content script.
   v8::Persistent<v8::Context> parent_context;
 
+  // The RenderView that this context belongs to.  This is not guaranteed to be
+  // a valid pointer, and is used for comparisons only.  Do not dereference.
+  RenderView* render_view;
+
   ContextInfo(v8::Persistent<v8::Context> context,
               const std::string& extension_id,
-              v8::Persistent<v8::Context> parent_context)
+              v8::Persistent<v8::Context> parent_context,
+              RenderView* render_view)
       : context(context), extension_id(extension_id),
-        parent_context(parent_context) {}
+        parent_context(parent_context), render_view(render_view) {}
 };
 typedef std::list< linked_ptr<ContextInfo> > ContextList;