Cleanup histograms from message loop, as well as kHexRangePrintingFlag.

chrome/app/chrome_main_delegate.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/app/chrome_main_delegate.h"
 
 #include <stddef.h>
 #include <string>
 
 #include "base/base_paths.h"
@@ skipping 746 matching lines @@
     }
 #endif
   }
 
   // Register component_updater PathProvider after DIR_USER_DATA overidden by
   // command line flags. Maybe move the chrome PathProvider down here also?
   component_updater::RegisterPathProvider(chrome::DIR_COMPONENTS,
                                           chrome::DIR_INTERNAL_PLUGINS,
                                           chrome::DIR_USER_DATA);
 
-  // Enable Message Loop related state asap.
-  if (command_line.HasSwitch(switches::kMessageLoopHistogrammer))
-    base::MessageLoop::EnableHistogrammer(true);
-
 #if !defined(OS_ANDROID) && !defined(OS_WIN)
   // Android does InitLogging when library is loaded. Skip here.
   // For windows we call InitLogging when the sandbox is initialized.
   InitLogging(process_type);
 #endif
 
 #if defined(OS_WIN)
   // TODO(zturner): Throbber icons are still stored in chrome.dll, this can be
   // killed once those are merged into resources.pak.  See
   // GlassBrowserFrameView::InitThrobberIcons() and http://crbug.com/368327.
@@ skipping 276 matching lines @@
     case version_info::Channel::CANARY:
       return true;
     case version_info::Channel::DEV:
     case version_info::Channel::BETA:
     case version_info::Channel::STABLE:
     default:
       // Don't enable instrumentation.
       return false;
   }
 }