[SyncFS] Add TaskLogger and wire up it.

chrome/browser/sync_file_system/drive_backend/sync_task_manager.h

 // Copyright 2014 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_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_MANAGER_H_
 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_MANAGER_H_
 
 #include <queue>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "chrome/browser/sync_file_system/drive_backend/sync_task.h"
 #include "chrome/browser/sync_file_system/drive_backend/task_dependency_manager.h"
 #include "chrome/browser/sync_file_system/sync_callbacks.h"
 #include "chrome/browser/sync_file_system/sync_status_code.h"
+#include "chrome/browser/sync_file_system/task_logger.h"
 
 namespace tracked_objects {
 class Location;
 }
 
 namespace sync_file_system {
 namespace drive_backend {
 
 class SyncTaskToken;
 struct BlockingFactor;
@@ skipping 22 matching lines @@
    public:
     virtual ~Client() {}
 
     // Called when the manager is idle.
     virtual void MaybeScheduleNextTask() = 0;
 
     // Called when the manager is notified a task is done.
     virtual void NotifyLastOperationStatus(
         SyncStatusCode last_operation_status,
         bool last_operation_used_network) = 0;
+
+    virtual void RecordTaskLog(scoped_ptr<TaskLogger::TaskLog> task_log) = 0;
   };
 
   // Runs at most |maximum_background_tasks| parallel as background tasks.
   // If |maximum_background_tasks| is zero, all task runs as foreground task.
   SyncTaskManager(base::WeakPtr<Client> client,
                   size_t maximum_background_task);
   virtual ~SyncTaskManager();
 
   // This needs to be called to start task scheduling.
   // If |status| is not SYNC_STATUS_OK calling this may change the
@@ skipping 111 matching lines @@
 
   TaskDependencyManager dependency_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncTaskManager);
 };
 
 }  // namespace drive_backend
 }  // namespace sync_file_system
 
 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_SYNC_TASK_MANAGER_H_