Files.app Test: check the cast icon in drive volume

chrome/browser/chromeos/file_manager/file_manager_browsertest.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.
 
 // Browser test for basic Chrome OS file manager functionality:
 //  - The file list is updated when a file is added externally to the Downloads
 //    folder.
 //  - Selecting a file and copy-pasting it with the keyboard copies the file.
 //  - Selecting a file and pressing delete deletes it.
 
@@ skipping 1418 matching lines @@
     return test_case_name_.c_str();
   }
 
  protected:
   virtual void SetUp() OVERRIDE {
     AddScript("common/test_util_common.js");
     AddScript("video_player/test_util.js");
     FileManagerBrowserTestBase::SetUp();
   }
 
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    command_line->AppendSwitch(
+        chromeos::switches::kEnableVideoPlayerChromecastSupport);
+    FileManagerBrowserTestBase::SetUpCommandLine(command_line);
+  }
+
   virtual std::string OnMessage(const std::string& name,
                                 const base::Value* value) OVERRIDE;
 
   virtual const char* GetTestManifestName() const OVERRIDE {
     return "video_player_test_manifest.json";
   }
 
   void AddScript(const std::string& name) {
     scripts_.AppendString(
         "chrome-extension://ljoplibgfehghmibaoaepfagnmbbfiga/" + name);
@@ skipping 30 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(VideoPlayerBrowserTest, OpenSingleVideoOnDrive) {
   AddScript("video_player/open_video_files.js");
   set_test_case_name("openSingleVideoOnDrive");
   StartTest();
 }
 
 }  // namespace
 }  // namespace file_manager