[Android] Add phone progress bar animation behind a flag.

chrome/common/chrome_switches.h

 // Copyright (c) 2012 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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 319 matching lines @@
 extern const char kDisableContextualSearch[];
 extern const char kDisableZeroSuggest[];
 extern const char kEnableAccessibilityTabSwitcher[];
 extern const char kEnableContextualSearch[];
 extern const char kEnableDomDistillerButtonAnimation[];
 extern const char kEnableHostedMode[];
 extern const char kEnableReaderModeToolbarIcon[];
 extern const char kEnableZeroSuggestMostVisited[];
 extern const char kEnableZeroSuggestMostVisitedWithoutSerp[];
 extern const char kPrefetchSearchResults[];
+extern const char kProgressBarAnimation[];
 #endif  // defined(OS_ANDROID)
 
 #if defined(USE_ASH)
 extern const char kOpenAsh[];
 #endif
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_CHROMEOS)
 extern const char kHelp[];
 extern const char kHelpShort[];
 extern const char kPasswordStore[];
@@ skipping 71 matching lines @@
 #if defined(ENABLE_TASK_MANAGER)
 bool NewTaskManagerEnabled();
 #endif  // defined(ENABLE_TASK_MANAGER)
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_