Changes to get mash browser_tests shutdown working correctly

content/public/test/test_launcher.cc

Index: content/public/test/test_launcher.cc
diff --git a/content/public/test/test_launcher.cc b/content/public/test/test_launcher.cc
index 183d82a12eed58d2bcc915548f464e8dbc388fe2..4b578d8cfd77b873dddf0c01dd7c1fcefa335264 100644
--- a/content/public/test/test_launcher.cc
+++ b/content/public/test/test_launcher.cc
@@ -472,6 +472,8 @@ scoped_ptr<TestState> TestLauncherDelegate::PreRunTest(
   return nullptr;
 }
 
+void TestLauncherDelegate::OnDoneRunningTests() {}
+
 TestLauncherDelegate::~TestLauncherDelegate() {
 }
 
@@ -541,7 +543,9 @@ int LaunchTests(TestLauncherDelegate* launcher_delegate,
 
   WrapperTestLauncherDelegate delegate(launcher_delegate);
   base::TestLauncher launcher(&delegate, default_jobs);
-  return (launcher.Run() ? 0 : 1);
+  const int result = launcher.Run() ? 0 : 1;
+  launcher_delegate->OnDoneRunningTests();
+  return result;
 }
 
 TestLauncherDelegate* GetCurrentTestLauncherDelegate() {