Move c/b/google_apis to google_apis/drive.

chrome/browser/google_apis/task_util.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/google_apis/task_util.h"
-
-#include "base/location.h"
-
-namespace google_apis {
-
-void RunTaskOnThread(scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-                     const base::Closure& task) {
-  if (task_runner->BelongsToCurrentThread()) {
-    task.Run();
-  } else {
-    const bool posted = task_runner->PostTask(FROM_HERE, task);
-    DCHECK(posted);
-  }
-}
-
-}  // namespace google_apis