Fix docking behaviour for devtools windows that don't have an associated browser window

chrome/browser/debugger/devtools_manager.h

 // Copyright (c) 2009 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 CHROME_BROWSER_DEBUGGER_DEVTOOLS_MANAGER_H_
 #define CHROME_BROWSER_DEBUGGER_DEVTOOLS_MANAGER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 32 matching lines @@
 
   void ForwardToDevToolsAgent(RenderViewHost* client_rvh,
                               const IPC::Message& message);
   void ForwardToDevToolsAgent(DevToolsClientHost* from,
                               const IPC::Message& message);
   void ForwardToDevToolsClient(RenderViewHost* inspected_rvh,
                                const IPC::Message& message);
 
   void ActivateWindow(RenderViewHost* client_rvn);
   void CloseWindow(RenderViewHost* client_rvn);
-  void DockWindow(RenderViewHost* client_rvn);
-  void UndockWindow(RenderViewHost* client_rvn);
+  void RequestDockWindow(RenderViewHost* client_rvn);
+  void RequestUndockWindow(RenderViewHost* client_rvn);
 
   void OpenDevToolsWindow(RenderViewHost* inspected_rvh);
   void ToggleDevToolsWindow(RenderViewHost* inspected_rvh, bool open_console);
   void RuntimeFeatureStateChanged(RenderViewHost* inspected_rvh,
                                   const std::string& feature,
                                   bool enabled);
 
   // Starts element inspection in the devtools client.
   // Creates one by means of OpenDevToolsWindow if no client
   // exists.
@@ skipping 76 matching lines @@
 
   typedef std::map<int, std::pair<DevToolsClientHost*, RuntimeFeatures> >
       OrphanClientHosts;
   OrphanClientHosts orphan_client_hosts_;
   int last_orphan_cookie_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsManager);
 };
 
 #endif  // CHROME_BROWSER_DEBUGGER_DEVTOOLS_MANAGER_H_