Only send events to renderers that are listening to an event....

chrome/test/render_view_test.cc

 // Copyright (c) 2009 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/test/render_view_test.h"
 
 #include "chrome/common/render_messages.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/renderer/extensions/event_bindings.h"
 #include "chrome/renderer/extensions/extension_process_bindings.h"
@@ skipping 41 matching lines @@
 }
 
 void RenderViewTest::SetUp() {
   WebKit::initialize(&webkitclient_);
   WebKit::registerExtension(BaseJsV8Extension::Get());
   WebKit::registerExtension(JsonJsV8Extension::Get());
   WebKit::registerExtension(JsonSchemaJsV8Extension::Get());
   WebKit::registerExtension(EventBindings::Get());
   WebKit::registerExtension(ExtensionProcessBindings::Get());
   WebKit::registerExtension(RendererExtensionBindings::Get(&render_thread_));
+  EventBindings::SetRenderThread(&render_thread_);
 
   // TODO(aa): Should some of this go to some other inheriting class?
   std::vector<std::string> names;
   ExtensionFunctionDispatcher::GetAllFunctionNames(&names);
   ExtensionProcessBindings::SetFunctionNames(names);
 
   mock_process_.reset(new MockProcess());
 
   render_thread_.set_routing_id(kRouteId);
 
   // This needs to pass the mock render thread to the view.
   view_ = RenderView::Create(&render_thread_, NULL, NULL, kOpenerId,
                              WebPreferences(),
                              new SharedRenderViewCounter(0), kRouteId);
 }
 void RenderViewTest::TearDown() {
   render_thread_.SendCloseMessage();
 
   // Run the loop so the release task from the renderwidget executes.
   ProcessPendingMessages();
 
+  EventBindings::SetRenderThread(NULL);
+
   view_ = NULL;
 
   mock_process_.reset();
   WebKit::shutdown();
 
   msg_loop_.RunAllPending();
 }