Replace MessageLoopProxy usage with ThreadTaskRunnerHandle in chrome utility module.

MessageLoopProxy is deprecated.
This basically does a search and replace:

MessageLoopProxy::current() -> ThreadTaskRunnerHandle::Get().

BUG=391045

Review URL: https://codereview.chromium.org/1111673003

Cr-Commit-Position: refs/heads/master@{#327346}

chrome/utility/image_writer/disk_unmounter_mac.cc

@@ -7,9 +7,9 @@
 #include <sys/socket.h>
 #include <IOKit/storage/IOStorageProtocolCharacteristics.h>
 
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/message_loop/message_pump_mac.h"
 #include "base/posix/eintr_wrapper.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/utility/image_writer/error_messages.h"
 #include "chrome/utility/image_writer/image_writer.h"
 
@@ -32,7 +32,7 @@ void DiskUnmounterMac::Unmount(const std::string& device_path,
                                const base::Closure& failure_continuation) {
   // Should only be used once.
   DCHECK(!original_thread_.get());
-  original_thread_ = base::MessageLoopProxy::current();
+  original_thread_ = base::ThreadTaskRunnerHandle::Get();
   success_continuation_ = success_continuation;
   failure_continuation_ = failure_continuation;
 

chrome/utility/image_writer/disk_unmounter_mac.h

@@ -12,6 +12,7 @@
 #include "base/callback.h"
 #include "base/mac/foundation_util.h"
 #include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
 
 namespace image_writer {
@@ -57,7 +58,7 @@ class DiskUnmounterMac {
   // A convenience method that triggers the failure continuation.
   void Error();
 
-  scoped_refptr<base::MessageLoopProxy> original_thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> original_thread_;
   base::Closure success_continuation_;
   base::Closure failure_continuation_;
 

chrome/utility/media_galleries/ipc_data_source.cc

@@ -4,7 +4,7 @@
 
 #include "chrome/utility/media_galleries/ipc_data_source.h"
 
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "content/public/utility/utility_thread.h"
 
@@ -12,7 +12,7 @@ namespace metadata {
 
 IPCDataSource::IPCDataSource(int64 total_size)
     : total_size_(total_size),
-      utility_task_runner_(base::MessageLoopProxy::current()),
+      utility_task_runner_(base::ThreadTaskRunnerHandle::Get()),
       next_request_id_(0) {
   data_source_thread_checker_.DetachFromThread();
 }

chrome/utility/profile_import_handler.cc

@@ -6,7 +6,7 @@
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/threading/thread.h"
 #include "chrome/common/importer/profile_import_process_messages.h"
 #include "chrome/utility/importer/external_process_importer_bridge.h"
@@ -45,7 +45,7 @@ void ProfileImportHandler::OnImportStart(
   bridge_ = new ExternalProcessImporterBridge(
       localized_strings,
       content::UtilityThread::Get(),
-      base::MessageLoopProxy::current().get());
+      base::ThreadTaskRunnerHandle::Get().get());
   importer_ = importer::CreateImporterByType(source_profile.importer_type);
   if (!importer_.get()) {
     Send(new ProfileImportProcessHostMsg_Import_Finished(