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

chrome/renderer/extensions/bindings_utils.cc

Index: chrome/renderer/extensions/bindings_utils.cc
===================================================================
--- chrome/renderer/extensions/bindings_utils.cc	(revision 103262)
+++ chrome/renderer/extensions/bindings_utils.cc	(working copy)
@@ -38,6 +38,18 @@
 
 ContextInfo::~ContextInfo() {}
 
+WebFrame* ContextInfo::GetWebFrame() const {
+  return WebFrame::frameForContext(context);
+}
+
+RenderView* ContextInfo::GetRenderView() const {
+  WebFrame* frame = GetWebFrame();
+  if (!frame || !frame->view())
+    return NULL;
+
+  return RenderView::FromWebView(frame->view());
+}
+
 ContextList& GetContexts() {
   return g_singleton_data.Get().contexts;
 }