Implement Browser Actions extensions....

chrome/renderer/resources/extension_process_bindings.js

 // Copyright (c) 2009 The chrome Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // -----------------------------------------------------------------------------
 // NOTE: If you change this file you need to touch renderer_resources.grd to
 // have your change take effect.
 // -----------------------------------------------------------------------------
 
 // This script contains privileged chrome extension related javascript APIs.
@@ skipping 175 matching lines @@
   function setupPageActionEvents(extensionId) {
     var pageActions = GetCurrentPageActions(extensionId);
     var eventName = "";
     for (var i = 0; i < pageActions.length; ++i) {
       eventName = extensionId + "/" + pageActions[i];
       // Setup events for each extension_id/page_action_id string we find.
       chrome.pageActions[pageActions[i]] = new chrome.Event(eventName);
     }
   }
 
+  // Browser action events send {windowpId}.
+  function setupBrowserActionEvent(extensionId) {
+    var eventName = "browserAction/" + extensionId;
+    chrome.browserAction = chrome.browserAction || {};
+    chrome.browserAction.onClicked = new chrome.Event(eventName);
+  }
+
   function setupToolstripEvents(renderViewId) {
     chrome.toolstrip = chrome.toolstrip || {};
     chrome.toolstrip.onExpanded =
         new chrome.Event("toolstrip.onExpanded." + renderViewId);
     chrome.toolstrip.onCollapsed =
         new chrome.Event("toolstrip.onCollapsed." + renderViewId);
   }
 
   chromeHidden.onLoad.addListener(function (extensionId) {
     chrome.extension = new chrome.Extension(extensionId);
@@ skipping 104 matching lines @@
       functions.forEach(function(name) {
         // Event disambiguation is handled by name munging.  See
         // chrome/browser/extensions/extension_devtools_events.h for the C++
         // equivalent of this logic.
         tabIdProxy[name] = new chrome.Event("devtools." + tabId + "." + name);
       });
       return tabIdProxy;
     }
 
     setupPageActionEvents(extensionId);
+    setupBrowserActionEvent(extensionId);
     setupToolstripEvents(GetRenderViewId());
   });
 })();