Task manager should support Idle Wakeups on Windows

chrome/browser/task_management/sampling/task_group_sampler.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_SAMPLER_H_
 #define CHROME_BROWSER_TASK_MANAGEMENT_SAMPLING_TASK_GROUP_SAMPLER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 22 matching lines @@
 
   MemoryUsageStats() {}
 };
 
 // Defines the expensive process' stats sampler that will calculate these
 // resources on the worker thread. Objects of this class are created by the
 // TaskGroups on the UI thread, however it will be used mainly on a blocking
 // pool thread.
 class TaskGroupSampler : public base::RefCountedThreadSafe<TaskGroupSampler> {
  public:
-  // The below are the types of the callbacks to the UI thread upon their
-  // corresponding refresh are done on the worker thread.
+  // Below are the types of callbacks that are invoked on the UI thread upon
+  // completion of corresponding refresh tasks on the worker thread.
   using OnCpuRefreshCallback = base::Callback<void(double)>;
   using OnMemoryRefreshCallback = base::Callback<void(MemoryUsageStats)>;
   using OnIdleWakeupsCallback = base::Callback<void(int)>;
 #if defined(OS_LINUX)
   using OnOpenFdCountCallback = base::Callback<void(int)>;
 #endif  // defined(OS_LINUX)
   using OnProcessPriorityCallback = base::Callback<void(bool)>;
 
   TaskGroupSampler(
       base::Process process,
@@ skipping 46 matching lines @@
   // To assert we're running on the correct thread.
   base::SequenceChecker worker_pool_sequenced_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskGroupSampler);
 };
 
 }  // namespace task_management
 
 
 #endif  // CHROME_BROWSER_TASK_MANAGEMENT_SAMPLING_TASK_GROUP_SAMPLER_H_