[Chromecast] Enable browser media tests to work on internal builds

chromecast/browser/test/chromecast_browser_test.h

 // Copyright 2014 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 CHROMECAST_BROWSER_TEST_CHROMECAST_BROWSER_TEST_H_
 #define CHROMECAST_BROWSER_TEST_CHROMECAST_BROWSER_TEST_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "content/public/test/browser_test.h"
 #include "content/public/test/browser_test_base.h"
 
 namespace content {
 class WebContents;
 }
 
 namespace chromecast {
 namespace shell {
-class CastContentWindow;
+class ChromecastBrowserTestHelper;
 
 // This test allows for running an entire browser-process lifecycle per unit
 // test, using Chromecast's cast_shell. This starts up the shell, runs a test
 // case, then shuts down the entire shell.
 // Note that this process takes 7-10 seconds per test case on Chromecast, so
 // fewer test cases with more assertions are preferable.
 class ChromecastBrowserTest : public content::BrowserTestBase {
  protected:
   ChromecastBrowserTest();
   ~ChromecastBrowserTest() override;
 
   // testing::Test implementation:
   void SetUp() override;
 
   // BrowserTestBase implementation:
   void RunTestOnMainThreadLoop() override;
 
  protected:
-  void NavigateToURL(content::WebContents* window, const GURL& gurl);
-
-  // Creates a new window and loads about:blank.
-  content::WebContents* CreateBrowser();
-
-  // Returns the window for the test.
-  content::WebContents* web_contents() const { return web_contents_.get(); }
+  std::unique_ptr<ChromecastBrowserTestHelper> helper_;
 
  private:
-  std::unique_ptr<content::WebContents> web_contents_;
-  std::unique_ptr<CastContentWindow> window_;
-
   bool setup_called_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromecastBrowserTest);
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_BROWSER_TEST_CHROMECAST_BROWSER_TEST_H_