Fix include guards of files in src/ios.

ios/chrome/browser/ui/UIView+SizeClassSupport.h

 // Copyright 2015 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.
 
-#ifndef IOS_CHROME_BROWSER_UI_UIVIEW_SIZE_CLASS_SUPPORT_H_
-#define IOS_CHROME_BROWSER_UI_UIVIEW_SIZE_CLASS_SUPPORT_H_
+#ifndef IOS_CHROME_BROWSER_UI_UIVIEW_SIZECLASSSUPPORT_H_
+#define IOS_CHROME_BROWSER_UI_UIVIEW_SIZECLASSSUPPORT_H_
 
 #import <UIKit/UIKit.h>
 
 // An enum type to describe size classes.
 typedef NS_ENUM(NSInteger, SizeClassIdiom) {
   COMPACT = 0,
   REGULAR,
   UNSPECIFIED,
   SIZE_CLASS_COUNT = UNSPECIFIED,
 };
 
 // UIView category that exposes SizeClassIdiom getters.
 @interface UIView (SizeClassSupport)
 
 // Convenience getters for the view's width and height SizeClassIdioms.  If the
 // view's size class is unspecified, these functions return the size class idiom
 // of the application's key window.
 @property(nonatomic, readonly) SizeClassIdiom cr_widthSizeClass;
 @property(nonatomic, readonly) SizeClassIdiom cr_heightSizeClass;
 
 @end
 
-#endif  // IOS_CHROME_BROWSER_UI_UIVIEW_SIZE_CLASS_SUPPORT_H_
+#endif  // IOS_CHROME_BROWSER_UI_UIVIEW_SIZECLASSSUPPORT_H_