MacViews: Fix ViewTest.HandleAccelerator by faking window activation

ui/views/test/widget_test.h

Index: ui/views/test/widget_test.h
diff --git a/ui/views/test/widget_test.h b/ui/views/test/widget_test.h
index 0eee5eeab5b7ee2c4b160dae4fd918bbd12ec553..238de54ef85779633a3e4e6c393ee1372b17a47b 100644
--- a/ui/views/test/widget_test.h
+++ b/ui/views/test/widget_test.h
@@ -33,21 +33,6 @@ namespace test {
 
 class WidgetTest : public ViewsTestBase {
  public:
-  // Scoped handle that fakes all widgets into claiming they are active. This
-  // allows a test to assume active status does not get stolen by a test that
-  // may be running in parallel. It shouldn't be used in tests that create
-  // multiple widgets.
-  class FakeActivation {
-   public:
-    virtual ~FakeActivation() {}
-
-   protected:
-    FakeActivation() {}
-
-   private:
-    DISALLOW_COPY_AND_ASSIGN(FakeActivation);
-  };
-
   WidgetTest();
   ~WidgetTest() override;
 
@@ -104,10 +89,6 @@ class WidgetTest : public ViewsTestBase {
   static ui::internal::InputMethodDelegate* GetInputMethodDelegateForWidget(
       Widget* widget);
 
-#if defined(OS_MACOSX)
-  static scoped_ptr<FakeActivation> FakeWidgetIsActiveAlways();
-#endif
-
  private:
   DISALLOW_COPY_AND_ASSIGN(WidgetTest);
 };