TaskManager: use an unordered_map for tracking network usage

chrome/browser/task_manager/task_manager_interface.h

 // Copyright 2015 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_INTERFACE_H_
 #define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_INTERFACE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/macros.h"
 #include "base/memory/memory_coordinator_client.h"
 #include "base/observer_list.h"
 #include "base/process/kill.h"
 #include "base/process/process_handle.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/task_manager/providers/task.h"
+#include "chrome/browser/task_manager/sampling/task_manager_io_thread_helper.h"
 #include "chrome/browser/task_manager/task_manager_observer.h"
 #include "third_party/WebKit/public/platform/WebCache.h"
 #include "ui/gfx/image/image_skia.h"
 
 class PrefRegistrySimple;
 
 namespace content {
 class WebContents;
 }  // namespace content
 
-namespace net {
-class URLRequest;
-}  // namespace net
-
 namespace task_manager {
 
 // Defines the interface for any implementation of the task manager.
 // Concrete implementations have no control over the refresh rate nor the
 // enabled calculations of the usage of the various resources.
 class TaskManagerInterface {
  public:
   // Registers the task manager related prefs.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
   // Returns true if the user is allowed to end processes.
   static bool IsEndProcessEnabled();
 
   // Gets the existing instance of the task manager if any, otherwise it will
   // create it first. Must be called on the UI thread.
   static TaskManagerInterface* GetTaskManager();
 
   // This notification will be received on the IO thread from
   // ChromeNetworkDelegate to update the task manager with read network usage.
-  static void OnRawBytesRead(const net::URLRequest& request,
-                             int64_t bytes_read);
-
-  // This notification will be received on the IO thread from
-  // ChromeNetworkDelegate to update the task manager with sent network usage.
-  static void OnRawBytesSent(const net::URLRequest& request,
-                             int64_t bytes_sent);
+  static void OnRawBytesTransferred(BytesTransferredKey key,
+                                    int64_t bytes_read,
+                                    int64_t bytes_sent);
 
   void AddObserver(TaskManagerObserver* observer);
   void RemoveObserver(TaskManagerObserver* observer);
 
   // Activates the task with |task_id| by bringing its container to the front if
   // possible.
   virtual void ActivateTask(TaskId task_id) = 0;
 
   // Returns if the task is killable.
   virtual bool IsTaskKillable(TaskId task_id) = 0;
@@ skipping 228 matching lines @@
 
   // The flags containing the enabled resources types calculations.
   int64_t enabled_resources_flags_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerInterface);
 };
 
 }  // namespace task_manager
 
 #endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_INTERFACE_H_