[chromedriver] When launching a Chrome App, automatically switch to the new window.

chrome/test/chromedriver/chrome/chrome_desktop_impl.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_CHROME_CHROME_DESKTOP_IMPL_H_
 #define CHROME_TEST_CHROMEDRIVER_CHROME_CHROME_DESKTOP_IMPL_H_
 
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 39 matching lines @@
   Status GetAsDesktop(ChromeDesktopImpl** desktop) override;
   std::string GetOperatingSystemName() override;
 
   // Overridden from ChromeImpl:
   bool IsMobileEmulationEnabled() const override;
   bool HasTouchScreen() const override;
   Status QuitImpl() override;
 
   const base::CommandLine& command() const;
 
+  Status WaitForNewAppWindow(const base::TimeDelta& timeout,
+                             const std::string& app_id,
+                             std::string* web_view_id);
+
  private:
   base::Process process_;
   base::CommandLine command_;
   base::ScopedTempDir user_data_dir_;
   base::ScopedTempDir extension_dir_;
 
   // Lazily initialized, may be null.
   scoped_ptr<AutomationExtension> automation_extension_;
 };
 
 #endif  // CHROME_TEST_CHROMEDRIVER_CHROME_CHROME_DESKTOP_IMPL_H_