Convert Pass()→std::move() for iOS build.

components/dom_distiller/ios/distiller_page_ios.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.
 
 #include "components/dom_distiller/ios/distiller_page_ios.h"
 
 #import <UIKit/UIKit.h>
 
+#include <utility>
+
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/values.h"
 #include "ios/public/provider/web/web_controller_provider.h"
 #include "ios/web/public/browser_state.h"
 
 namespace dom_distiller {
 
 // Helper class for observing the loading of URLs to distill.
@@ skipping 81 matching lines @@
   });
 }
 
 void DistillerPageIOS::HandleJavaScriptResultString(NSString* result) {
   scoped_ptr<base::Value> resultValue = base::Value::CreateNullValue();
   if (result.length) {
     scoped_ptr<base::Value> dictionaryValue =
         base::JSONReader::Read(base::SysNSStringToUTF8(result));
     if (dictionaryValue &&
         dictionaryValue->IsType(base::Value::TYPE_DICTIONARY)) {
-      resultValue = dictionaryValue.Pass();
+      resultValue = std::move(dictionaryValue);
     }
   }
   OnDistillationDone(url_, resultValue.get());
 }
 
 }  // namespace dom_distiller