[ObjC ARC] Converts components/autofill/ios/browser:browser to ARC.

components/autofill/ios/browser/autofill_driver_ios.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 "components/autofill/ios/browser/autofill_driver_ios.h"
 
 #include "components/autofill/ios/browser/autofill_driver_ios_bridge.h"
 #include "ios/web/public/browser_state.h"
 #import "ios/web/public/origin_util.h"
 #include "ios/web/public/web_state/web_state.h"
 #include "ios/web/public/web_thread.h"
 #include "ui/gfx/geometry/rect_f.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 DEFINE_WEB_STATE_USER_DATA_KEY(autofill::AutofillDriverIOS);
 
 namespace autofill {
 
 // static
 void AutofillDriverIOS::CreateForWebStateAndDelegate(
     web::WebState* web_state,
     AutofillClient* client,
     id<AutofillDriverIOSBridge> bridge,
     const std::string& app_locale,
@@ skipping 80 matching lines @@
 
 void AutofillDriverIOS::PopupHidden() {
 }
 
 gfx::RectF AutofillDriverIOS::TransformBoundingBoxToViewportCoordinates(
     const gfx::RectF& bounding_box) {
   return bounding_box;
 }
 
 }  // namespace autofill