Replace DCHECK(BrowserThread::CurrentlyOn) with DCHECK_CURRENTLY_ON in extensions.

chrome/browser/extensions/api/image_writer_private/operation_nonchromeos.cc

 // Copyright 2014 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 "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "base/threading/worker_pool.h"
 #include "chrome/browser/extensions/api/image_writer_private/error_messages.h"
 #include "chrome/browser/extensions/api/image_writer_private/operation.h"
 #include "chrome/browser/extensions/api/image_writer_private/operation_manager.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace extensions {
 namespace image_writer {
 
 using content::BrowserThread;
 
 void Operation::Write(const base::Closure& continuation) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+  DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   if (IsCancelled()) {
     return;
   }
 
   SetStage(image_writer_api::STAGE_WRITE);
   StartUtilityClient();
 
   int64 file_size;
   if (!base::GetFileSize(image_path_, &file_size)) {
     Error(error::kImageReadError);
     return;
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(
           &ImageWriterUtilityClient::Write,
           image_writer_client_,
           base::Bind(&Operation::WriteImageProgress, this, file_size),
           base::Bind(&Operation::CompleteAndContinue, this, continuation),
           base::Bind(&Operation::Error, this),
           image_path_,
           device_path_));
 }
 
 void Operation::VerifyWrite(const base::Closure& continuation) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+  DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 
   if (IsCancelled()) {
     return;
   }
 
   SetStage(image_writer_api::STAGE_VERIFYWRITE);
   StartUtilityClient();
 
   int64 file_size;
   if (!base::GetFileSize(image_path_, &file_size)) {
     Error(error::kImageReadError);
     return;
   }
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(
           &ImageWriterUtilityClient::Verify,
           image_writer_client_,
           base::Bind(&Operation::WriteImageProgress, this, file_size),
           base::Bind(&Operation::CompleteAndContinue, this, continuation),
           base::Bind(&Operation::Error, this),
           image_path_,
           device_path_));
 }
 
 }  // namespace image_writer
 }  // namespace extensions