Remove the distinction between informational and warning infobar

ios/public/provider/chrome/browser/ui/infobar_view_protocol.h

 // Copyright 2013 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_PUBLIC_PROVIDER_CHROME_BROWSER_UI_INFOBAR_VIEW_PROTOCOL_H_
 #define IOS_PUBLIC_PROVIDER_CHROME_BROWSER_UI_INFOBAR_VIEW_PROTOCOL_H_
 
 #import <Foundation/Foundation.h>
 
 struct CGSize;
 class InfoBarViewDelegate;
 @class UIImage;
 
 // Interface for setting up the infobar's widgets.
 @protocol InfoBarViewProtocol
 // How much of infobar is visible. The infobar is only partly visible during
 // showing/hiding animation.
 @property(nonatomic, assign) CGFloat visibleHeight;
 
-// The designated initializer. Set |isWarning| to YES to have a warning infobar,
-// and to NO to have an informational infobar.
+// The designated initializer.
 - (instancetype)initWithFrame:(CGRect)frame
-                     delegate:(InfoBarViewDelegate*)delegate
-                    isWarning:(BOOL)isWarning;
+                     delegate:(InfoBarViewDelegate*)delegate;
 
 // Stops propagating events to delegate.
 - (void)resetDelegate;
 
 // TODO(jif): rename methods from add* to set*. crbug.com/302582
 // Adds a dismiss button subview.
 - (void)addCloseButtonWithTag:(NSInteger)tag
                        target:(id)target
                        action:(SEL)action;
 
@@ skipping 37 matching lines @@
 // Adds to the infobar a switch and an adjacent label.
 - (void)addSwitchWithLabel:(NSString*)label
                       isOn:(BOOL)isOn
                        tag:(NSInteger)tag
                     target:(id)target
                     action:(SEL)action;
 
 @end
 
 #endif  // IOS_PUBLIC_PROVIDER_CHROME_BROWSER_UI_INFOBAR_VIEW_PROTOCOL_H_