Remove use of deprecated MessageLoop methods in sync.

sync/internal_api/sync_encryption_handler_impl.cc

Index: sync/internal_api/sync_encryption_handler_impl.cc
diff --git a/sync/internal_api/sync_encryption_handler_impl.cc b/sync/internal_api/sync_encryption_handler_impl.cc
index 8a0b6cf50eac8dcab91756276ba660b8de3f57ae..a4aafb6c9189efe9f10ab0d3f45174e844257542 100644
--- a/sync/internal_api/sync_encryption_handler_impl.cc
+++ b/sync/internal_api/sync_encryption_handler_impl.cc
@@ -14,8 +14,10 @@
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/json/json_string_value_serializer.h"
-#include "base/message_loop/message_loop.h"
+#include "base/location.h"
 #include "base/metrics/histogram.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "base/tracked_objects.h"
 #include "sync/internal_api/public/read_node.h"
@@ -656,10 +658,9 @@ void SyncEncryptionHandlerImpl::ApplyNigoriUpdate(
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(trans);
   if (!ApplyNigoriUpdateImpl(nigori, trans)) {
-    base::MessageLoop::current()->PostTask(
-        FROM_HERE,
-        base::Bind(&SyncEncryptionHandlerImpl::RewriteNigori,
-                   weak_ptr_factory_.GetWeakPtr()));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(&SyncEncryptionHandlerImpl::RewriteNigori,
+                              weak_ptr_factory_.GetWeakPtr()));
   }
 
   FOR_EACH_OBSERVER(
@@ -744,10 +745,9 @@ bool SyncEncryptionHandlerImpl::SetKeystoreKeys(
   // Note that triggering migration will have no effect if we're already
   // properly migrated with the newest keystore keys.
   if (ShouldTriggerMigration(nigori, *cryptographer)) {
-    base::MessageLoop::current()->PostTask(
-        FROM_HERE,
-        base::Bind(&SyncEncryptionHandlerImpl::RewriteNigori,
-                   weak_ptr_factory_.GetWeakPtr()));
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
+        FROM_HERE, base::Bind(&SyncEncryptionHandlerImpl::RewriteNigori,
+                              weak_ptr_factory_.GetWeakPtr()));
   }
 
   return true;