Move UserScript and related into extensions namespace

chrome/renderer/extensions/user_script_scheduler.h

 // 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.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_USER_SCRIPT_SCHEDULER_H_
 #define CHROME_RENDERER_EXTENSIONS_USER_SCRIPT_SCHEDULER_H_
 
 #include <map>
 #include <queue>
 
 #include "chrome/common/extensions/user_script.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
 
 class ExtensionDispatcher;
 class RenderView;
 struct ExtensionMsg_ExecuteCode_Params;
 
 namespace WebKit {
 class WebFrame;
 }
 
+namespace extensions {
+
 // Implements support for injecting scripts at different times in the document
 // loading process. The different possible time are described in
 // UserScript::RunLocation.
 //
 // Currently, determining idleness is simple: it is whichever of the following
 // happens first:
 //
 // a) When the initial DOM for a page is complete + kUserScriptIdleTimeout,
 // b) or when the page has completely loaded including all subresources.
 //
 // The intent of this mechanism is to prevent user scripts from slowing down
 // fast pages (run after load), while still allowing them to run relatively
 // timely for pages with lots of slow subresources.
 //
 // NOTE: this class does not inherit from RenderViewObserver on purpose.  The
 // reason is that this object is per frame, and a frame can move across
 // RenderViews thanks to adoptNode.  So we have each RenderView's
 // ExtensionHelper proxy these calls to the renderer process'
 // ExtensionDispatcher, which contains the mapping from WebFrame to us.
 class UserScriptScheduler {
  public:
   UserScriptScheduler(WebKit::WebFrame* frame,
-                          ExtensionDispatcher* extension_dispatcher);
+                      ExtensionDispatcher* extension_dispatcher);
   ~UserScriptScheduler();
 
   void ExecuteCode(const ExtensionMsg_ExecuteCode_Params& params);
   void DidCreateDocumentElement();
   void DidFinishDocumentLoad();
   void DidFinishLoad();
   void DidStartProvisionalLoad();
 
  private:
   typedef
@@ skipping 26 matching lines @@
 
   // Whether we have already run the idle scripts.
   bool has_run_idle_;
 
   // This is only used if we're for the main frame.
   std::map<UserScript::RunLocation, ExecutionQueue> pending_execution_map_;
 
   ExtensionDispatcher* extension_dispatcher_;
 };
 
+}  // namespace extensions
+
 #endif  // CHROME_RENDERER_EXTENSIONS_USER_SCRIPT_SCHEDULER_H_