MacViews: Fix ViewTest.HandleAccelerator by faking window activation

ui/base/test/ui_controls_mac.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/test/ui_controls.h"
 
 #import <Cocoa/Cocoa.h>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 161 matching lines @@
 }
 
 }  // namespace
 
 namespace ui_controls {
 
 void EnableUIControls() {
   g_ui_controls_enabled = true;
 }
 
+bool IsUIControlsEnabled() {
+  return g_ui_controls_enabled;
+}
+
 bool SendKeyPress(gfx::NativeWindow window,
                   ui::KeyboardCode key,
                   bool control,
                   bool shift,
                   bool alt,
                   bool command) {
   CHECK(g_ui_controls_enabled);
   return SendKeyPressNotifyWhenDone(window, key,
                                     control, shift, alt, command,
                                     base::Closure());
@@ skipping 143 matching lines @@
 void RunClosureAfterAllPendingUIEvents(const base::Closure& closure) {
   base::MessageLoop::current()->PostTask(
       FROM_HERE, base::Bind(&EventQueueWatcher, closure));
 }
 
 bool IsFullKeyboardAccessEnabled() {
   return [NSApp isFullKeyboardAccessEnabled];
 }
 
 }  // namespace ui_controls