Fixed memory leaks in new unittests

TEST=heapcheck with remoting_unittest
BUG=None
TBR: ajwong

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@55003 0039d316-1c4b-4281-b951-d872f2087c98

remoting/host/heartbeat_sender_unittest.cc

@@ -72,6 +72,9 @@ class HeartbeatSenderTest : public testing::Test {
         NewRunnableMethod(config_updater.get(), &TestConfigUpdater::DoUpdate,
                           config_));
 
+    // Run the message loop to save new config.
+    message_loop_.RunAllPending();
+
     jingle_thread_.message_loop_ = &message_loop_;
 
     jingle_client_ = new MockJingleClient(&jingle_thread_);

remoting/host/host_key_pair_unittest.cc

@@ -52,6 +52,8 @@ TEST_F(HostKeyPairTest, SaveLoad) {
   exported_key.LoadFromString(kTestHostKeyPair);
   exported_key.Save(config_);
 
+  message_loop_.RunAllPending();
+
   HostKeyPair imported_key;
   imported_key.Load(config_);