Domain Reliability: Don't upload when metrics reporting is off.

base/prefs/pref_member.cc

Index: base/prefs/pref_member.cc
diff --git a/base/prefs/pref_member.cc b/base/prefs/pref_member.cc
index eb708394979964615eec8db0c9222ae0de220632..a54e607f878da5a29211098cfff579c9e79c7650 100644
--- a/base/prefs/pref_member.cc
+++ b/base/prefs/pref_member.cc
@@ -11,6 +11,7 @@
 #include "base/value_conversions.h"
 
 using base::MessageLoopProxy;
+using base::SingleThreadTaskRunner;
 
 namespace subtle {
 
@@ -53,7 +54,7 @@ void PrefMemberBase::Destroy() {
 }
 
 void PrefMemberBase::MoveToThread(
-    const scoped_refptr<MessageLoopProxy>& message_loop) {
+    const scoped_refptr<SingleThreadTaskRunner>& message_loop) {
   VerifyValuePrefName();
   // Load the value from preferences if it hasn't been loaded so far.
   if (!internal())
@@ -127,7 +128,7 @@ void PrefMemberBase::Internal::UpdateValue(
 }
 
 void PrefMemberBase::Internal::MoveToThread(
-    const scoped_refptr<MessageLoopProxy>& message_loop) {
+    const scoped_refptr<SingleThreadTaskRunner>& message_loop) {
   CheckOnCorrectThread();
   thread_loop_ = message_loop;
 }