[chrome/browser/chromeos/drive] Avoid use of MessageLoopProxy by use of TTRH

chrome/browser/chromeos/drive/change_list_loader.cc

Index: chrome/browser/chromeos/drive/change_list_loader.cc
diff --git a/chrome/browser/chromeos/drive/change_list_loader.cc b/chrome/browser/chromeos/drive/change_list_loader.cc
index 143927a49cf646e75eb7ef1a40dd44fcb1ff636d..d0816105c1b3ecf61f1f42d8b06d46256a62fdd8 100644
--- a/chrome/browser/chromeos/drive/change_list_loader.cc
+++ b/chrome/browser/chromeos/drive/change_list_loader.cc
@@ -11,6 +11,7 @@
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/cancellation_flag.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/drive/change_list_loader_observer.h"
 #include "chrome/browser/chromeos/drive/change_list_processor.h"
@@ -226,11 +227,10 @@ void AboutResourceLoader::GetAboutResource(
   }
 
   if (cached_about_resource_) {
-    base::MessageLoopProxy::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(
-            callback,
-            google_apis::HTTP_NO_CONTENT,
+            callback, google_apis::HTTP_NO_CONTENT,
             base::Passed(scoped_ptr<google_apis::AboutResource>(
                 new google_apis::AboutResource(*cached_about_resource_)))));
   } else {
@@ -461,9 +461,8 @@ void ChangeListLoader::OnChangeListLoadComplete(FileError error) {
   }
 
   for (size_t i = 0; i < pending_load_callback_.size(); ++i) {
-    base::MessageLoopProxy::current()->PostTask(
-        FROM_HERE,
-        base::Bind(pending_load_callback_[i], error));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(pending_load_callback_[i], error));
   }
   pending_load_callback_.clear();