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

ios/web/web_state/ui/crw_ui_web_view_web_controller.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 "ios/web/web_state/ui/crw_ui_web_view_web_controller.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include <utility>
+
 #import "base/ios/ios_util.h"
 #import "base/ios/ns_error_util.h"
 #import "base/ios/weak_nsobject.h"
 #include "base/json/json_reader.h"
 #include "base/json/string_escape.h"
 #include "base/mac/bind_objc_block.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/field_trial.h"
@@ skipping 301 matching lines @@
 // The maximum size of JSON message passed from JavaScript to ObjC.
 // 256kB is an arbitrary number that was chosen to be a magnitude larger than
 // any legitimate message.
 const size_t kMaxMessageQueueSize = 262144;
 
 }  // namespace
 
 @implementation CRWUIWebViewWebController
 
 - (instancetype)initWithWebState:(scoped_ptr<web::WebStateImpl>)webState {
-  self = [super initWithWebState:webState.Pass()];
+  self = [super initWithWebState:std::move(webState)];
   if (self) {
     _jsInvokeParameterQueue.reset([[CRWJSInvokeParameterQueue alloc] init]);
 
     NSNotificationCenter* defaultCenter = [NSNotificationCenter defaultCenter];
     [defaultCenter addObserver:self
                       selector:@selector(moviePlayerDidEnterFullscreen:)
                           name:
         @"UIMoviePlayerControllerDidEnterFullscreenNotification"
                         object:nil];
     [defaultCenter addObserver:self
@@ skipping 1251 matching lines @@
 }
 
 #pragma mark -
 #pragma mark Testing methods
 
 -(id<CRWRecurringTaskDelegate>)recurringTaskDelegate {
   return _recurringTaskDelegate;
 }
 
 @end