Switch to standard integer types in ios/.

ios/chrome/browser/ui/background_generator.mm

 // Copyright 2012 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 "ios/chrome/browser/ui/background_generator.h"
 
 #import <QuartzCore/QuartzCore.h>
+#include <stddef.h>
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #import "base/mac/scoped_nsobject.h"
 #import "ios/chrome/browser/ui/ui_util.h"
 
 // This is a utility function that may be used as a standalone helper function
 // to generate a radial gradient UIImage.
 UIImage* GetRadialGradient(CGRect backgroundRect,
@@ skipping 30 matching lines @@
 
 void InstallBackgroundInView(UIView* view) {
   UIImageView* imageView =
       [[[UIImageView alloc] initWithFrame:view.bounds] autorelease];
   imageView.image = [UIImage imageNamed:@"stack_view_background_noise.jpg"];
   imageView.contentMode = UIViewContentModeScaleAspectFill;
   imageView.autoresizingMask =
       UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
   [view insertSubview:imageView atIndex:0];
 }