[remoting] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

remoting/host/heartbeat_sender.h

Index: remoting/host/heartbeat_sender.h
diff --git a/remoting/host/heartbeat_sender.h b/remoting/host/heartbeat_sender.h
index 84a6ad077c4db666646f39e7c9e126bbea11ca7f..1a7aee84d5289877893262c93a60bd8a85e9fd42 100644
--- a/remoting/host/heartbeat_sender.h
+++ b/remoting/host/heartbeat_sender.h
@@ -12,13 +12,14 @@
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/single_thread_task_runner.h"
 #include "base/threading/thread_checker.h"
 #include "base/timer/timer.h"
 #include "remoting/base/rsa_key_pair.h"
 #include "remoting/signaling/signal_strategy.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;

[Sergey Ulanov, 2015/04/28 17:03:22]

SingleThreadTaskRunner is not used in this file, so you can remove this and also
don't need to include single_thread_task_runner.h . You certainly don't need
both forward-declare it here and include single_thread_task_runner.h at the same
time

[anujsharma, 2015/05/04 12:38:21]

Done.

 class TimeDelta;
 }  // namespace base