MacViews: Fix ViewTest.HandleAccelerator by faking window activation

ui/views/bubble/bubble_delegate_unittest.cc

Index: ui/views/bubble/bubble_delegate_unittest.cc
diff --git a/ui/views/bubble/bubble_delegate_unittest.cc b/ui/views/bubble/bubble_delegate_unittest.cc
index 5998d1487b8c405e35cbf22a8edc9293e8e2085e..f7656f061511f617a6db4a26f9840ebefc6ee956 100644
--- a/ui/views/bubble/bubble_delegate_unittest.cc
+++ b/ui/views/bubble/bubble_delegate_unittest.cc
@@ -15,10 +15,6 @@
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_observer.h"
 
-#if defined(OS_MACOSX)
-#include "ui/base/test/scoped_fake_nswindow_focus.h"
-#endif
-
 namespace views {
 
 namespace {
@@ -70,11 +66,6 @@ class BubbleDelegateTest : public ViewsTestBase {
   }
 
  private:
-#if defined(OS_MACOSX)
-  // Ensure tests running in parallel don't steal focus from the Widget on Mac.
-  ui::test::ScopedFakeNSWindowFocus fake_focus_;
-#endif
-
   DISALLOW_COPY_AND_ASSIGN(BubbleDelegateTest);
 };