Upstream Chrome on iOS source code [5/11].

ios/chrome/browser/ui/icons/chrome_icon.h

+// Copyright 2016 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_ICONS_CHROME_ICON_H_
+#define IOS_CHROME_BROWSER_UI_ICONS_CHROME_ICON_H_
+
+#import <UIKit/UIKit.h>
+
+@interface ChromeIcon : NSObject
+
+// Commonly used icons. Icons that flip in RTL already have their
+// flipsForRightToLeftLayoutDirection
+// property set accordingly.
++ (UIImage*)backIcon;
++ (UIImage*)closeIcon;
++ (UIImage*)infoIcon;
++ (UIImage*)searchIcon;
++ (UIImage*)chevronIcon;
+
+// Returns a "template" UIBarButtonItem initialized with the given image.
+// The returned bar button item will have its image rendering mode set to
+// UIImageRenderingModeAlwaysTemplate and will thus take on the tint color of
+// its container.
++ (UIBarButtonItem*)templateBarButtonItemWithImage:(UIImage*)image
+                                            target:(id)target
+                                            action:(SEL)action;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_ICONS_CHROME_ICON_H_