Create task_manager namespace and wrap classes related to TaskManager with it.

chrome/browser/task_manager/child_process_resource_provider.h

 // Copyright 2013 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_TASK_MANAGER_TASK_MANAGER_CHILD_PROCESS_RESOURCE_PROVIDER_H_
-#define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_CHILD_PROCESS_RESOURCE_PROVIDER_H_
+#ifndef CHROME_BROWSER_TASK_MANAGER_CHILD_PROCESS_RESOURCE_PROVIDER_H_
+#define CHROME_BROWSER_TASK_MANAGER_CHILD_PROCESS_RESOURCE_PROVIDER_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "content/public/browser/browser_child_process_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
-class TaskManagerChildProcessResource;
-
 namespace content {
 struct ChildProcessData;
 }
 
-class TaskManagerChildProcessResourceProvider
+namespace task_manager {
+
+class ChildProcessResource;
+
+class ChildProcessResourceProvider
     : public TaskManager::ResourceProvider,
       public content::BrowserChildProcessObserver {
  public:
-  explicit TaskManagerChildProcessResourceProvider(TaskManager* task_manager);
+  explicit ChildProcessResourceProvider(TaskManager* task_manager);
 
   virtual TaskManager::Resource* GetResource(int origin_pid,
                                              int render_process_host_id,
                                              int routing_id) OVERRIDE;
   virtual void StartUpdating() OVERRIDE;
   virtual void StopUpdating() OVERRIDE;
 
   // content::BrowserChildProcessObserver methods:
   virtual void BrowserChildProcessHostConnected(
       const content::ChildProcessData& data) OVERRIDE;
   virtual void BrowserChildProcessHostDisconnected(
       const content::ChildProcessData& data) OVERRIDE;
 
  private:
-  virtual ~TaskManagerChildProcessResourceProvider();
+  virtual ~ChildProcessResourceProvider();
 
   // Retrieves information about the running ChildProcessHosts (performed in the
   // IO thread).
   virtual void RetrieveChildProcessData();
 
   // Notifies the UI thread that the ChildProcessHosts information have been
   // retrieved.
   virtual void ChildProcessDataRetreived(
       const std::vector<content::ChildProcessData>& child_processes);
 
   void AddToTaskManager(const content::ChildProcessData& child_process_data);
 
   TaskManager* task_manager_;
 
   // Whether we are currently reporting to the task manager. Used to ignore
   // notifications sent after StopUpdating().
   bool updating_;
 
   // Maps the actual resources (the ChildProcessData) to the Task Manager
   // resources.
-  typedef std::map<base::ProcessHandle, TaskManagerChildProcessResource*>
+  typedef std::map<base::ProcessHandle, ChildProcessResource*>
       ChildProcessMap;
   ChildProcessMap resources_;
 
   // Maps the pids to the resources (used for quick access to the resource on
   // byte read notifications).
-  typedef std::map<int, TaskManagerChildProcessResource*> PidResourceMap;
+  typedef std::map<int, ChildProcessResource*> PidResourceMap;
   PidResourceMap pid_to_resources_;
 
   // A scoped container for notification registries.
   content::NotificationRegistrar registrar_;
 
-  DISALLOW_COPY_AND_ASSIGN(TaskManagerChildProcessResourceProvider);
+  DISALLOW_COPY_AND_ASSIGN(ChildProcessResourceProvider);
 };
 
-#endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_CHILD_PROCESS_RESOURCE_PROVIDER_H_
+}  // namespace task_manager
+
+#endif  // CHROME_BROWSER_TASK_MANAGER_CHILD_PROCESS_RESOURCE_PROVIDER_H_