Adding an api to get number of event listeners.

chrome/test/chromedriver/window_commands.cc

 // Copyright (c) 2013 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/chromedriver/window_commands.h"
 
 #include <list>
 #include <string>
 
 #include "base/callback.h"
@@ skipping 238 matching lines @@
 Status ExecuteExecuteScript(
     Session* session,
     WebView* web_view,
     const base::DictionaryValue& params,
     scoped_ptr<base::Value>* value) {
   std::string script;
   if (!params.GetString("script", &script))
     return Status(kUnknownError, "'script' must be a string");
   if (script == ":takeHeapSnapshot") {
     return web_view->TakeHeapSnapshot(value);
+  } else if (script == ":getEventListenersCount") {
+    return web_view->GetEventListenersCount(value);
   } else {
     const base::ListValue* args;
     if (!params.GetList("args", &args))
       return Status(kUnknownError, "'args' must be a list");
 
     return web_view->CallFunction(session->GetCurrentFrameId(),
                                   "function(){" + script + "}", *args, value);
   }
 }
 
@@ skipping 586 matching lines @@
     // |accuracy| is not part of the WebDriver spec yet, so if it is not given
     // default to 100 meters accuracy.
     geoposition.accuracy = 100;
   }
 
   Status status = web_view->OverrideGeolocation(geoposition);
   if (status.IsOk())
     session->overridden_geoposition.reset(new Geoposition(geoposition));
   return status;
 }