[chrome/browser/extensions] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/browser/extensions/api/image_writer_private/image_writer_utility_client.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/bind.h"
 #include "base/message_loop/message_loop.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/image_writer_private/image_writer_utility_client.h"
 #include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using content::BrowserThread;
 
 ImageWriterUtilityClient::ImageWriterUtilityClient()
-    : message_loop_proxy_(base::MessageLoopProxy::current()) {}
+    : thread_task_runner_(base::ThreadTaskRunnerHandle::Get()) {}
 ImageWriterUtilityClient::~ImageWriterUtilityClient() {}
 
 void ImageWriterUtilityClient::Write(const ProgressCallback& progress_callback,
                                      const SuccessCallback& success_callback,
                                      const ErrorCallback& error_callback,
                                      const base::FilePath& source,
                                      const base::FilePath& target) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   StartHost();
 
   progress_callback_ = progress_callback;
   success_callback_ = success_callback;
   error_callback_ = error_callback;
 
   if (!Send(new ChromeUtilityMsg_ImageWriter_Write(source, target))) {
     DLOG(ERROR) << "Unable to send Write message to Utility Process.";
-    message_loop_proxy_->PostTask(
+    thread_task_runner_->PostTask(
         FROM_HERE, base::Bind(error_callback_, "IPC communication failed"));
   }
 }
 
 void ImageWriterUtilityClient::Verify(const ProgressCallback& progress_callback,
                                       const SuccessCallback& success_callback,
                                       const ErrorCallback& error_callback,
                                       const base::FilePath& source,
                                       const base::FilePath& target) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   StartHost();
 
   progress_callback_ = progress_callback;
   success_callback_ = success_callback;
   error_callback_ = error_callback;
 
   if (!Send(new ChromeUtilityMsg_ImageWriter_Verify(source, target))) {
     DLOG(ERROR) << "Unable to send Verify message to Utility Process.";
-    message_loop_proxy_->PostTask(
+    thread_task_runner_->PostTask(
         FROM_HERE, base::Bind(error_callback_, "IPC communication failed"));
   }
 }
 
 void ImageWriterUtilityClient::Cancel(const CancelCallback& cancel_callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   if (!utility_process_host_) {
     // If we haven't connected, there is nothing to cancel.
-    message_loop_proxy_->PostTask(FROM_HERE, cancel_callback);
+    thread_task_runner_->PostTask(FROM_HERE, cancel_callback);
     return;
   }
 
   cancel_callback_ = cancel_callback;
 
   if (!Send(new ChromeUtilityMsg_ImageWriter_Cancel())) {
     DLOG(ERROR) << "Unable to send Cancel message to Utility Process.";
   }
 }
 
@@ skipping 22 matching lines @@
 #if defined(OS_WIN)
     utility_process_host_->ElevatePrivileges();
 #else
     utility_process_host_->DisableSandbox();
 #endif
     utility_process_host_->StartBatchMode();
   }
 }
 
 void ImageWriterUtilityClient::OnProcessCrashed(int exit_code) {
-  message_loop_proxy_->PostTask(
+  thread_task_runner_->PostTask(
       FROM_HERE, base::Bind(error_callback_, "Utility process crashed."));
 }
 
 void ImageWriterUtilityClient::OnProcessLaunchFailed() {
-  message_loop_proxy_->PostTask(
+  thread_task_runner_->PostTask(
       FROM_HERE, base::Bind(error_callback_, "Process launch failed."));
 }
 
 bool ImageWriterUtilityClient::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ImageWriterUtilityClient, message)
   IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Succeeded,
                       OnWriteImageSucceeded)
   IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Cancelled,
                       OnWriteImageCancelled)
   IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Failed,
                       OnWriteImageFailed)
   IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ImageWriter_Progress,
                       OnWriteImageProgress)
   IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 bool ImageWriterUtilityClient::Send(IPC::Message* msg) {
   return utility_process_host_ && utility_process_host_->Send(msg);
 }
 
 void ImageWriterUtilityClient::OnWriteImageSucceeded() {
   if (!success_callback_.is_null()) {
-    message_loop_proxy_->PostTask(FROM_HERE, success_callback_);
+    thread_task_runner_->PostTask(FROM_HERE, success_callback_);
   }
 }
 
 void ImageWriterUtilityClient::OnWriteImageCancelled() {
   if (!cancel_callback_.is_null()) {
-    message_loop_proxy_->PostTask(FROM_HERE, cancel_callback_);
+    thread_task_runner_->PostTask(FROM_HERE, cancel_callback_);
   }
 }
 
 void ImageWriterUtilityClient::OnWriteImageFailed(const std::string& message) {
   if (!error_callback_.is_null()) {
-    message_loop_proxy_->PostTask(FROM_HERE,
+    thread_task_runner_->PostTask(FROM_HERE,
                                   base::Bind(error_callback_, message));
   }
 }
 
 void ImageWriterUtilityClient::OnWriteImageProgress(int64 progress) {
   if (!progress_callback_.is_null()) {
-    message_loop_proxy_->PostTask(FROM_HERE,
+    thread_task_runner_->PostTask(FROM_HERE,
                                   base::Bind(progress_callback_, progress));
   }
 }