Replace scoped_ptr with std::unique_ptr in //ui

ui/events/cocoa/events_mac_unittest.mm

Index: ui/events/cocoa/events_mac_unittest.mm
diff --git a/ui/events/cocoa/events_mac_unittest.mm b/ui/events/cocoa/events_mac_unittest.mm
index 96abb2f06daa297b859b620b25862a3aea2b59a9..56f9bdd21dd8843f8d2c956ee94fbb3ae8cb3491 100644
--- a/ui/events/cocoa/events_mac_unittest.mm
+++ b/ui/events/cocoa/events_mac_unittest.mm
@@ -2,18 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ui/events/event_utils.h"
-
 #import <Cocoa/Cocoa.h>
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/mac/scoped_cftyperef.h"
 #import "base/mac/scoped_objc_class_swizzler.h"
 #include "base/mac/sdk_forward_declarations.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event_constants.h"
+#include "ui/events/event_utils.h"
 #import "ui/events/test/cocoa_test_event_utils.h"
 #include "ui/gfx/geometry/point.h"
 #import "ui/gfx/test/ui_cocoa_test_helper.h"
@@ -121,7 +121,7 @@ class EventsMacTest : public CocoaTest {
   }
 
  private:
-  scoped_ptr<base::mac::ScopedObjCClassSwizzler> swizzler_;
+  std::unique_ptr<base::mac::ScopedObjCClassSwizzler> swizzler_;
 
   DISALLOW_COPY_AND_ASSIGN(EventsMacTest);
 };