Replace MessageLoop::current() with ThreadTaskRunnerHandle::Get() in GCM

google_apis/gcm/engine/heartbeat_manager_unittest.cc

Index: google_apis/gcm/engine/heartbeat_manager_unittest.cc
diff --git a/google_apis/gcm/engine/heartbeat_manager_unittest.cc b/google_apis/gcm/engine/heartbeat_manager_unittest.cc
index 6e378c2311a3c2205570a0988bc32a03b9dd8500..b7ee684734f557c40d6371569df61c17f1c2df1f 100644
--- a/google_apis/gcm/engine/heartbeat_manager_unittest.cc
+++ b/google_apis/gcm/engine/heartbeat_manager_unittest.cc
@@ -7,7 +7,8 @@
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
+#include "base/test/test_simple_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "google_apis/gcm/protocol/mcs.pb.h"
@@ -65,13 +66,16 @@ class HeartbeatManagerTest : public testing::Test {
   int heartbeats_sent_;
   int reconnects_triggered_;
 
-  base::MessageLoop message_loop_;
+  scoped_refptr<base::TestSimpleTaskRunner> task_runner_;
+  base::ThreadTaskRunnerHandle task_runner_handle_;
 };
 
 HeartbeatManagerTest::HeartbeatManagerTest()
     : manager_(new TestHeartbeatManager()),
       heartbeats_sent_(0),
-      reconnects_triggered_(0) {
+      reconnects_triggered_(0),
+      task_runner_(new base::TestSimpleTaskRunner()),
+      task_runner_handle_(task_runner_) {
 }
 
 void HeartbeatManagerTest::StartManager() {