Add ScopedObjCClassSwizzler in base/mac, absorbs objc_method_swizzle and ScopedClassSwizzler

ui/views/test/event_generator_delegate_mac.mm

 // Copyright 2014 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.
 
 #import <Cocoa/Cocoa.h>
 
+#import "base/test/scoped_class_swizzler_mac.h"
 #include "ui/events/event_processor.h"
 #include "ui/events/event_target.h"
 #include "ui/events/event_target_iterator.h"
 #include "ui/events/event_targeter.h"
 #include "ui/events/test/event_generator.h"
-#import "ui/events/test/cocoa_test_event_utils.h"
 #include "ui/gfx/mac/coordinate_conversion.h"
 
 namespace {
 
 // Singleton to provide state for swizzled Objective C methods.
 ui::test::EventGenerator* g_active_generator = NULL;
 
 }  // namespace
 
 @interface NSEventDonor : NSObject
@@ skipping 253 matching lines @@
   virtual void ConvertPointFromTarget(const ui::EventTarget* target,
                                       gfx::Point* point) const OVERRIDE {}
   virtual void ConvertPointToTarget(const ui::EventTarget* target,
                                     gfx::Point* point) const OVERRIDE {}
   virtual void ConvertPointFromHost(const ui::EventTarget* hosted_target,
                                     gfx::Point* point) const OVERRIDE {}
 
  private:
   ui::test::EventGenerator* owner_;
   NSWindow* window_;
-  ScopedClassSwizzler swizzle_pressed_;
+  base::ScopedClassSwizzler swizzle_pressed_;
 
   DISALLOW_COPY_AND_ASSIGN(EventGeneratorDelegateMac);
 };
 
 EventGeneratorDelegateMac::EventGeneratorDelegateMac(
     ui::test::EventGenerator* owner, NSWindow* window)
     : owner_(owner),
       window_(window),
       swizzle_pressed_([NSEvent class],
                        [NSEventDonor class],
@@ skipping 35 matching lines @@
 // static
 EventGeneratorDelegate* EventGenerator::CreateDefaultPlatformDelegate(
     EventGenerator* owner,
     gfx::NativeWindow root_window,
     gfx::NativeWindow window) {
   return new EventGeneratorDelegateMac(owner, window);
 }
 
 }  // namespace test
 }  // namespace ui