Dropping BrowsingDataFileSystemHelper browser_test in favor of a unit_test.

chrome/browser/browsing_data_file_system_helper.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/browsing_data_file_system_helper.h"
 
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
@@ skipping 137 matching lines @@
   if (completion_callback_ != NULL) {
     completion_callback_->Run(file_system_info_);
     completion_callback_.reset();
   }
   is_fetching_ = false;
 }
 
 void BrowsingDataFileSystemHelperImpl::DeleteFileSystemOriginInFileThread(
     const GURL& origin) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  scoped_refptr<fileapi::FileSystemContext>
-      context(profile_->GetFileSystemContext());
-  context->DeleteDataForOriginOnFileThread(origin);
+  profile_->GetFileSystemContext()->DeleteDataForOriginOnFileThread(origin);
 }
 
 }  // namespace
 
 BrowsingDataFileSystemHelper::FileSystemInfo::FileSystemInfo(
     const GURL& origin,
     bool has_persistent,
     bool has_temporary,
     int64 usage_persistent,
     int64 usage_temporary)
@@ skipping 120 matching lines @@
     completion_callback_->Run(file_system_info_);
     completion_callback_.reset();
   }
   is_fetching_ = false;
 }
 
 void CannedBrowsingDataFileSystemHelper::CancelNotification() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   completion_callback_.reset();
 }