Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

chrome/browser/history/top_sites_backend.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/history/top_sites_backend.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
+#include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/history/top_sites_database.h"
-#include "chrome/common/cancelable_task_tracker.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace history {
 
 TopSitesBackend::TopSitesBackend()
     : db_(new TopSitesDatabase()) {
 }
 
 void TopSitesBackend::Init(const base::FilePath& path) {
   db_path_ = path;
   BrowserThread::PostTask(
       BrowserThread::DB, FROM_HERE,
       base::Bind(&TopSitesBackend::InitDBOnDBThread, this, path));
 }
 
 void TopSitesBackend::Shutdown() {
   BrowserThread::PostTask(
       BrowserThread::DB, FROM_HERE,
       base::Bind(&TopSitesBackend::ShutdownDBOnDBThread, this));
 }
 
 void TopSitesBackend::GetMostVisitedThumbnails(
-      const GetMostVisitedThumbnailsCallback& callback,
-      CancelableTaskTracker* tracker) {
+    const GetMostVisitedThumbnailsCallback& callback,
+    base::CancelableTaskTracker* tracker) {
   scoped_refptr<MostVisitedThumbnails> thumbnails = new MostVisitedThumbnails();
 
   tracker->PostTaskAndReply(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB).get(),
       FROM_HERE,
       base::Bind(&TopSitesBackend::GetMostVisitedThumbnailsOnDBThread,
                  this,
                  thumbnails),
       base::Bind(callback, thumbnails));
 }
@@ skipping 13 matching lines @@
                  url_rank, thumbnail));
 }
 
 void TopSitesBackend::ResetDatabase() {
   BrowserThread::PostTask(
       BrowserThread::DB, FROM_HERE,
       base::Bind(&TopSitesBackend::ResetDatabaseOnDBThread, this, db_path_));
 }
 
 void TopSitesBackend::DoEmptyRequest(const base::Closure& reply,
-                                     CancelableTaskTracker* tracker) {
+                                     base::CancelableTaskTracker* tracker) {
   tracker->PostTaskAndReply(
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB).get(),
       FROM_HERE,
       base::Bind(&base::DoNothing),
       reply);
 }
 
 TopSitesBackend::~TopSitesBackend() {
   DCHECK(!db_);  // Shutdown should have happened first (which results in
                  // nulling out db).
@@ skipping 47 matching lines @@
 
 void TopSitesBackend::ResetDatabaseOnDBThread(const base::FilePath& file_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
   db_.reset(NULL);
   sql::Connection::Delete(db_path_);
   db_.reset(new TopSitesDatabase());
   InitDBOnDBThread(db_path_);
 }
 
 }  // namespace history