[chromedriver] Support clicking an element in sub frames.

chrome/test/chromedriver/stub_web_view.h

 // 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.
 
 #ifndef CHROME_TEST_CHROMEDRIVER_STUB_WEB_VIEW_H_
 #define CHROME_TEST_CHROMEDRIVER_STUB_WEB_VIEW_H_
 
 #include <list>
 #include <string>
 
@@ skipping 36 matching lines @@
       const std::list<MouseEvent>& events) OVERRIDE;
   virtual Status DispatchKeyEvents(const std::list<KeyEvent>& events) OVERRIDE;
   virtual Status GetCookies(scoped_ptr<base::ListValue>* cookies) OVERRIDE;
   virtual Status DeleteCookie(const std::string& name,
                               const std::string& url) OVERRIDE;
   virtual Status WaitForPendingNavigations(
       const std::string& frame_id) OVERRIDE;
   virtual Status GetMainFrame(std::string* frame_id) OVERRIDE;
   virtual JavaScriptDialogManager* GetJavaScriptDialogManager() OVERRIDE;
   virtual Status CaptureScreenshot(std::string* screenshot) OVERRIDE;
+  virtual Status GetFramePath(const std::string& frame_id,
+                              std::list<Frame>* frames) OVERRIDE;
 
  private:
   std::string id_;
 };
 
 #endif  // CHROME_TEST_CHROMEDRIVER_STUB_WEB_VIEW_H_