Make DevToolsManager a singleton, remove it from ContentBrowserClient

chrome/browser/ui/browser.cc

 // Copyright (c) 2011 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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 4085 matching lines @@
             instant_unload_handler_.reset();
           }
         } else {
           CreateInstantIfNecessary();
         }
       } else if (pref_name == prefs::kIncognitoModeAvailability) {
         UpdateCommandsForIncognitoAvailability();
       } else if (pref_name == prefs::kDevToolsDisabled) {
         UpdateCommandsForDevTools();
         if (profile_->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled))
-          g_browser_process->devtools_manager()->CloseAllClientHosts();
+          DevToolsManager::GetInstance()->CloseAllClientHosts();
       } else if (pref_name == prefs::kEditBookmarksEnabled) {
         UpdateCommandsForBookmarkEditing();
       } else if (pref_name == prefs::kShowBookmarkBar) {
         UpdateCommandsForBookmarkBar();
         UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE);
       } else if (pref_name == prefs::kHomePage) {
         PrefService* pref_service = content::Source<PrefService>(source).ptr();
         MarkHomePageAsChanged(pref_service);
       } else if (pref_name == prefs::kAllowFileSelectionDialogs) {
         UpdateSaveAsState(GetContentRestrictionsForSelectedTab());
@@ skipping 1155 matching lines @@
     window_->GetLocationBar()->ShowFirstRunBubble(bubble_type);
   } else if (is_type_tabbed()) {
     GlobalErrorService* service =
         GlobalErrorServiceFactory::GetForProfile(profile());
     GlobalError* error = service->GetFirstGlobalErrorWithBubbleView();
     if (error) {
       error->ShowBubbleView(this);
     }
   }
 }