Make DevToolsManager a singleton, remove it from ContentBrowserClient

content/public/browser/content_browser_client.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "content/public/common/window_container_type.h"
 #include "content/public/common/content_client.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNotificationPresenter.h"
 
 class AccessTokenStore;
 class BrowserURLHandler;
 class CommandLine;
-class DevToolsManager;
 class FilePath;
 class GURL;
 class MHTMLGenerationManager;
 class PluginProcessHost;
 class QuotaPermissionContext;
 class RenderViewHost;
 class RenderWidgetHost;
 class RenderWidgetHostView;
 class ResourceDispatcherHost;
 class SiteInstance;
@@ skipping 270 matching lines @@
   // Returns a title string to use in the task manager for a process host with
   // the given URL, or the empty string to fall back to the default logic.
   // This is called on the IO thread.
   virtual std::string GetWorkerProcessTitle(
       const GURL& url, const content::ResourceContext& context) = 0;
 
   // Getters for common objects.
   virtual ResourceDispatcherHost* GetResourceDispatcherHost() = 0;
   virtual ui::Clipboard* GetClipboard() = 0;
   virtual MHTMLGenerationManager* GetMHTMLGenerationManager() = 0;
-  virtual DevToolsManager* GetDevToolsManager() = 0;
   virtual net::NetLog* GetNetLog() = 0;
   virtual speech_input::SpeechInputManager* GetSpeechInputManager() = 0;
 
   // Creates a new AccessTokenStore for gelocation.
   virtual AccessTokenStore* CreateAccessTokenStore() = 0;
 
   // Returns true if fast shutdown is possible.
   virtual bool IsFastShutdownPossible() = 0;
 
   // Returns the WebKit preferences that are used by the renderer.
@@ skipping 41 matching lines @@
   // This is called on a worker thread.
   virtual
       crypto::CryptoModuleBlockingPasswordDelegate* GetCryptoPasswordDelegate(
           const GURL& url) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_