Task manager should support Idle Wakeups on Windows

chrome/browser/task_management/sampling/task_group.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_MANAGEMENT_SAMPLING_TASK_GROUP_H_
 #define CHROME_BROWSER_TASK_MANAGEMENT_SAMPLING_TASK_GROUP_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
+#include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/process/process_handle.h"
 #include "build/build_config.h"
 #include "chrome/browser/task_management/providers/task.h"
 #include "chrome/browser/task_management/sampling/task_group_sampler.h"
 #include "chrome/browser/task_management/task_manager_observer.h"
 
 namespace gpu {
 struct VideoMemoryUsageStats;
 }
 
 namespace task_management {
 
+class SharedSampler;
+
 // Defines a group of tasks tracked by the task manager which belong to the same
 // process. This class lives on the UI thread.
 class TaskGroup {
  public:
   TaskGroup(
       base::ProcessHandle proc_handle,
       base::ProcessId proc_id,
       const base::Closure& on_background_calculations_done,
+      const scoped_refptr<SharedSampler>& shared_sampler,
       const scoped_refptr<base::SequencedTaskRunner>& blocking_pool_runner);
   ~TaskGroup();
 
   // Adds and removes the given |task| to this group. |task| must be running on
   // the same process represented by this group.
   void AddTask(Task* task);
   void RemoveTask(Task* task);
 
   void Refresh(const gpu::VideoMemoryUsageStats& gpu_memory_stats,
                base::TimeDelta update_interval,
@@ skipping 73 matching lines @@
   // The process' handle and ID.
   base::ProcessHandle process_handle_;
   base::ProcessId process_id_;
 
   // This is a callback into the TaskManagerImpl to inform it that the
   // background calculations for this TaskGroup has finished.
   const base::Closure on_background_calculations_done_;
 
   scoped_refptr<TaskGroupSampler> worker_thread_sampler_;
 
+  scoped_refptr<SharedSampler> shared_sampler_;
+
   // Lists the Tasks in this TaskGroup.
   // Tasks are not owned by the TaskGroup. They're owned by the TaskProviders.
   std::vector<Task*> tasks_;
 
   // Flags will be used to determine when the background calculations has
   // completed for the enabled refresh types for this TaskGroup.
   int64_t expected_on_bg_done_flags_;
   int64_t current_on_bg_done_flags_;
 
   // The per process resources usages.
@@ skipping 25 matching lines @@
   // destroyed.
   base::WeakPtrFactory<TaskGroup> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskGroup);
 };
 
 }  // namespace task_management
 
 
 #endif  // CHROME_BROWSER_TASK_MANAGEMENT_SAMPLING_TASK_GROUP_H_