Revert 245256 "ash-enable-system-sounds is exposed to about:flags."

trunk/src/chrome/browser/about_flags.cc

 // 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.
 
 #include "chrome/browser/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 1942 matching lines @@
     SINGLE_VALUE_TYPE(switches::kEnableSavePasswordBubble)
   },
 #endif
   {
     "embed-flash-fullscreen",
     IDS_FLAGS_EMBED_FLASH_FULLSCREEN_NAME,
     IDS_FLAGS_EMBED_FLASH_FULLSCREEN_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kEmbedFlashFullscreen)
   },
-#if defined(USE_ASH) && defined(OS_CHROMEOS)
-  {
-    "enable-system-sounds",
-    IDS_FLAGS_ENABLE_SYSTEM_SOUNDS_NAME,
-    IDS_FLAGS_ENABLE_SYSTEM_SOUNDS_DESCRIPTION,
-    kOsCrOS,
-    SINGLE_VALUE_TYPE(ash::switches::kAshEnableSystemSounds)
-  },
-#endif
 #if defined(USE_AURA)
   {
     "use-system-title-bar",
     IDS_FLAGS_USE_SYSTEM_TITLE_BAR,
     IDS_FLAGS_USE_SYSTEM_TITLE_BAR_DESCRIPTION,
     kOsLinux,
     SINGLE_VALUE_TYPE(switches::kUseSystemTitleBar)
   },
 #endif
 #if defined(USE_AURA) || defined(OS_WIN)
@@ skipping 516 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags