Update page action manifest parsing to match the new format.

chrome/browser/extensions/extension_browser_event_router.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/browser/extensions/extension_browser_event_router.h"
 
 #include "base/json_writer.h"
 #include "base/values.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/profile.h"
@@ skipping 352 matching lines @@
 
   DictionaryValue* data = new DictionaryValue();
   data->Set(tab_keys::kTabIdKey, Value::CreateIntegerValue(tab_id));
   data->Set(tab_keys::kTabUrlKey, Value::CreateStringValue(url));
   data->Set(page_action_keys::kButtonKey, Value::CreateIntegerValue(button));
   args.Append(data);
 
   std::string json_args;
   JSONWriter::Write(&args, false, &json_args);
 
-  std::string event_name = extension_id + std::string("/") + page_action_id;
+  std::string event_name = std::string("pageAction/") + extension_id;
   DispatchEvent(profile, event_name.c_str(), json_args);
 }
 
 void ExtensionBrowserEventRouter::BrowserActionExecuted(
     Profile* profile, const std::string& extension_id, int window_id) {
   ListValue args;
   args.Append(Value::CreateIntegerValue(window_id));
 
   std::string json_args;
   JSONWriter::Write(&args, false, &json_args);
 
   std::string event_name = std::string("browserAction/") + extension_id;
   DispatchEvent(profile, event_name.c_str(), json_args);
 }