Add notifications for when V8Proxy creates or destroys a V8 Context.

chrome/renderer/render_view.cc

Index: chrome/renderer/render_view.cc
diff --git a/chrome/renderer/render_view.cc b/chrome/renderer/render_view.cc
index 5c2bc87695808a79fd0178d984ad02ab2d822156..071d2e38534e33f9cfca8339874c6fd30133257f 100644
--- a/chrome/renderer/render_view.cc
+++ b/chrome/renderer/render_view.cc
@@ -35,6 +35,7 @@
 #include "chrome/renderer/audio_message_filter.h"
 #include "chrome/renderer/devtools_agent.h"
 #include "chrome/renderer/devtools_client.h"
+#include "chrome/renderer/extensions/event_bindings.h"
 #include "chrome/renderer/extensions/extension_process_bindings.h"
 #include "chrome/renderer/localized_error.h"
 #include "chrome/renderer/media/audio_renderer_impl.h"
@@ -1419,6 +1420,14 @@ void RenderView::DocumentElementAvailable(WebFrame* frame) {
         frame, UserScript::DOCUMENT_START);
 }
 
+void RenderView::DidCreateScriptContext(WebFrame* webframe) {
+  EventBindings::HandleContextCreated(webframe);
+}
+
+void RenderView::DidDestroyScriptContext(WebFrame* webframe) {
+  EventBindings::HandleContextDestroyed(webframe);
+}
+
 WindowOpenDisposition RenderView::DispositionForNavigationAction(
     WebView* webview,
     WebFrame* frame,