webkit: Update the calls from RunAllPending() to RunUntilIdle().

webkit/fileapi/local_file_system_test_helper.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 "webkit/fileapi/local_file_system_test_helper.h"
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "googleurl/src/gurl.h"
@@ skipping 87 matching lines @@
   DCHECK(file_util_);
 
   // Initialize the usage cache file.
   FilePath usage_cache_path = GetUsageCachePath();
   if (!usage_cache_path.empty())
     FileSystemUsageCache::UpdateUsage(usage_cache_path, 0);
 }
 
 void LocalFileSystemTestOriginHelper::TearDown() {
   file_system_context_ = NULL;
-  MessageLoop::current()->RunAllPending();
+  MessageLoop::current()->RunUntilIdle();
 }
 
 FilePath LocalFileSystemTestOriginHelper::GetOriginRootPath() const {
   return file_system_context_->GetMountPointProvider(type_)->
       GetFileSystemRootPathOnFileThread(
           FileSystemURL(origin_, type_, FilePath()), false);
 }
 
 FilePath LocalFileSystemTestOriginHelper::GetLocalPath(const FilePath& path) {
   DCHECK(file_util_);
@@ skipping 69 matching lines @@
 LocalFileSystemTestOriginHelper::NewOperationContext() {
   DCHECK(file_system_context_.get());
   FileSystemOperationContext* context =
     new FileSystemOperationContext(file_system_context_.get());
   context->set_update_observers(
       *file_system_context_->GetUpdateObservers(type_));
   return context;
 }
 
 }  // namespace fileapi