MacViews: Fix failing Menu Runner Cocoa Tests.

ui/views/controls/menu/menu_runner_cocoa_unittest.mm

Index: ui/views/controls/menu/menu_runner_cocoa_unittest.mm
diff --git a/ui/views/controls/menu/menu_runner_cocoa_unittest.mm b/ui/views/controls/menu/menu_runner_cocoa_unittest.mm
index ee86b98275691c9349bcf84962c0bf5838d70af2..14a634a61f8ffef581edb24dc56f8cc3cea51f59 100644
--- a/ui/views/controls/menu/menu_runner_cocoa_unittest.mm
+++ b/ui/views/controls/menu/menu_runner_cocoa_unittest.mm
@@ -129,7 +129,10 @@ class MenuRunnerCocoaTest : public ViewsTestBase {
 
   void MenuCancelCallback() {
     runner_->Cancel();
-    EXPECT_FALSE(runner_->IsRunning());
+    // For a syncronous menu, MenuRunner::IsRunning() should return true
+    // immediately after MenuRunner::Cancel() since the nested message loop has
+    // not yet been terminated. It has only been marked for termination.
+    EXPECT_TRUE(runner_->IsRunning());
   }
 
   void MenuDeleteCallback() {