Fix leaks in tests introduced in http://crrev.com/149846.

chrome/common/extensions/extension_action_unittest.cc

Index: chrome/common/extensions/extension_action_unittest.cc
diff --git a/chrome/common/extensions/extension_action_unittest.cc b/chrome/common/extensions/extension_action_unittest.cc
index f6ea46f4788ada7512bbcfdbe0fef55ea5743643..9cf8ed86ca31ca426e7f507b504d62df7dc91fc7 100644
--- a/chrome/common/extensions/extension_action_unittest.cc
+++ b/chrome/common/extensions/extension_action_unittest.cc
@@ -137,6 +137,8 @@ TEST_F(ExtensionActionTest, Visibility) {
   ASSERT_FALSE(action.GetIsVisible(1));
   ASSERT_FALSE(action.GetIsVisible(100));
   EXPECT_FALSE(action.GetIconAnimation(100));
+
+  message_loop.RunAllPending();
 }
 
 TEST_F(ExtensionActionTest, GetAttention) {
@@ -156,6 +158,8 @@ TEST_F(ExtensionActionTest, GetAttention) {
   action.SetAppearance(1, ExtensionAction::ACTIVE);
   EXPECT_FALSE(action.GetIconAnimation(1))
       << "The animation should not play again if the icon was already visible.";
+
+  message_loop.RunAllPending();
 }
 
 TEST_F(ExtensionActionTest, Badge) {