Moved JsonPrefStore to use SequencedWorkerPool

chrome/browser/bookmarks/bookmark_storage.cc

 // Copyright (c) 2012 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/bookmarks/bookmark_storage.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 89 matching lines @@
       index_(index),
       max_id_(max_id),
       ids_reassigned_(false) {
 }
 
 BookmarkLoadDetails::~BookmarkLoadDetails() {
 }
 
 // BookmarkStorage -------------------------------------------------------------
 
-BookmarkStorage::BookmarkStorage(content::BrowserContext* context,
-                                 BookmarkModel* model)
+BookmarkStorage::BookmarkStorage(
+    content::BrowserContext* context,
+    BookmarkModel* model,
+    base::SequencedTaskRunner* sequenced_task_runner)
     : model_(model),
       writer_(context->GetPath().Append(chrome::kBookmarksFileName),
-              BrowserThread::GetMessageLoopProxyForThread(
-                  BrowserThread::FILE)) {
+              sequenced_task_runner) {
+  sequenced_task_runner_ = sequenced_task_runner;
   writer_.set_commit_interval(base::TimeDelta::FromMilliseconds(kSaveDelayMS));
-  BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
-                          base::Bind(&BackupCallback, writer_.path()));
+  sequenced_task_runner_->PostTask(FROM_HERE,
+                                   base::Bind(&BackupCallback, writer_.path()));
 }
 
 BookmarkStorage::~BookmarkStorage() {
   if (writer_.HasPendingWrite())
     writer_.DoScheduledWrite();
 }
 
 void BookmarkStorage::LoadBookmarks(BookmarkLoadDetails* details) {
   DCHECK(!details_.get());
   DCHECK(details);
   details_.reset(details);
-  BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE, base::Bind(
-      &LoadCallback, writer_.path(), make_scoped_refptr(this), details_.get()));
+  sequenced_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&LoadCallback, writer_.path(), make_scoped_refptr(this),
+                 details_.get()));
 }
 
 void BookmarkStorage::ScheduleSave() {
   writer_.ScheduleWrite(this);
 }
 
 void BookmarkStorage::BookmarkModelDeleted() {
   // We need to save now as otherwise by the time SaveNow is invoked
   // the model is gone.
   if (writer_.HasPendingWrite())
@@ skipping 23 matching lines @@
     NOTREACHED();
     return false;
   }
 
   std::string data;
   if (!SerializeData(&data))
     return false;
   writer_.WriteNow(data);
   return true;
 }