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

chrome/renderer/extensions/event_bindings.cc

Index: chrome/renderer/extensions/event_bindings.cc
diff --git a/chrome/renderer/extensions/event_bindings.cc b/chrome/renderer/extensions/event_bindings.cc
index 576beba4c8a37c58d55148d9c053371a695047e7..7c988e2be7a40f10eb036f75ff2a93176e8eb331 100644
--- a/chrome/renderer/extensions/event_bindings.cc
+++ b/chrome/renderer/extensions/event_bindings.cc
@@ -12,6 +12,7 @@
 #include "chrome/renderer/js_only_v8_extensions.h"
 #include "chrome/renderer/render_thread.h"
 #include "grit/renderer_resources.h"
+#include "webkit/glue/webframe.h"
 
 namespace {
 
@@ -164,6 +165,22 @@ void EventBindings::SetRenderThread(RenderThreadBase* thread) {
   render_thread = thread;
 }
 
+// static
+void EventBindings::HandleContextCreated(WebFrame* frame) {
+  v8::HandleScope handle_scope;
+  v8::Local<v8::Context> context = frame->GetScriptContext();
+  DCHECK(!context.IsEmpty());
+  // TODO(mpcomplete): register it
+}
+
+// static
+void EventBindings::HandleContextDestroyed(WebFrame* frame) {
+  v8::HandleScope handle_scope;
+  v8::Local<v8::Context> context = frame->GetScriptContext();
+  DCHECK(!context.IsEmpty());
+  // TODO(mpcomplete): unregister it, dispatch event
+}
+
 void EventBindings::CallFunction(const std::string& function_name,
                                  int argc, v8::Handle<v8::Value>* argv) {
   for (ContextList::iterator it = GetRegisteredContexts().begin();