Rename FileSystemMountPointProvider::ValidateFileSystemRoot to OpenFileSystem

chrome/browser/extensions/api/sync_file_system/sync_file_system_api.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/extensions/api/sync_file_system/sync_file_system_api.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 142 matching lines @@
     return;
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       Bind(&fileapi::FileSystemContext::OpenSyncableFileSystem,
            GetFileSystemContext(),
            service_name,
            source_url().GetOrigin(),
            fileapi::kFileSystemTypeSyncable,
-           true, /* create */
+           fileapi::OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
            base::Bind(&self::DidOpenFileSystem, this)));
 }
 
 void SyncFileSystemRequestFileSystemFunction::DidOpenFileSystem(
     base::PlatformFileError error,
     const std::string& file_system_name,
     const GURL& root_url) {
   // Repost to switch from IO thread to UI thread for SendResponse().
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
@@ skipping 219 matching lines @@
   DCHECK(service);
   api::sync_file_system::ConflictResolutionPolicy policy =
       ConflictResolutionPolicyToExtensionEnum(
           service->GetConflictResolutionPolicy());
   SetResult(Value::CreateStringValue(
           api::sync_file_system::ToString(policy)));
   return true;
 }
 
 }  // namespace extensions