Drop duplicated DCHECK on FakeDriveService

chrome/browser/drive/fake_drive_service.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/drive/fake_drive_service.h"
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 491 matching lines @@
       FROM_HERE,
       base::Bind(callback, HTTP_NOT_FOUND, GURL()));
   return CancelCallback();
 }
 
 CancelCallback FakeDriveService::GetAboutResource(
     const AboutResourceCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(!callback.is_null());
-
   if (offline_) {
     scoped_ptr<AboutResource> null;
     base::MessageLoop::current()->PostTask(
         FROM_HERE,
         base::Bind(callback,
                    GDATA_NO_CONNECTION, base::Passed(&null)));
     return CancelCallback();
   }
 
   ++about_resource_load_count_;
@@ skipping 1128 matching lines @@
       FROM_HERE,
       base::Bind(callback, HTTP_SUCCESS, base::Passed(&resource_list)));
 }
 
 GURL FakeDriveService::GetNewUploadSessionUrl() {
   return GURL("https://upload_session_url/" +
               base::Int64ToString(next_upload_sequence_number_++));
 }
 
 }  // namespace drive