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

chrome/renderer/extensions/bindings_utils.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/extensions/bindings_utils.h"
 
 #include "base/lazy_instance.h"
 #include "base/string_split.h"
 #include "base/string_util.h"
 #include "content/renderer/render_view.h"
@@ skipping 20 matching lines @@
                          const std::string& extension_id,
                          WebFrame* frame)
     : context(context),
       extension_id(extension_id),
       unsafe_frame(frame),
       num_connected_events(0) {
 }
 
 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;
 }
 
 ContextInfo* GetInfoForCurrentContext() {
   // This can happen in testing scenarios and v8::Context::GetCurrent() crashes
   // if there is no JavaScript currently running.
   if (!v8::Context::InContext())
     return NULL;
 
@@ skipping 71 matching lines @@
   }
 
   v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(value);
   if (!function.IsEmpty())
     return function->Call(v8::Object::New(), argc, argv);
 
   return v8::Undefined();
 }
 
 }  // namespace bindings_utils