Error pages: Break retain cycle NativeContent/StaticHTMLViewController

ios/chrome/browser/ui/static_content/static_html_view_controller.h

 // 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.
 
 #ifndef IOS_CHROME_BROWSER_UI_STATIC_CONTENT_STATIC_HTML_VIEW_CONTROLLER_H_
 #define IOS_CHROME_BROWSER_UI_STATIC_CONTENT_STATIC_HTML_VIEW_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 #import <WebKit/WebKit.h>
 
@@ skipping 46 matching lines @@
 
 // Initialization method. |resource| is the location of the static page to
 // display, relative to the root of the application bundle. |browserState| is
 // the user browser state to use for loading resources and must not be null.
 - (instancetype)initWithResource:(NSString*)resource
                     browserState:(web::BrowserState*)browserState;
 
 // Initialization method. |generator| will produce the html to display. Its
 // generation method will be called each time reload is called. |browserState|
 // is the user browser state to use for loading resources and must not be null.
+// |StaticHtmlViewController| retains |generator|.
 - (instancetype)initWithGenerator:(id<HtmlGenerator>)generator
                      browserState:(web::BrowserState*)browserState;
 
 // Initialization method. |fileURL| is the location of the page in the
 // application data directory. |resourcesRoot| is the root directory where the
 // page pointed by |fileURL| can find its resources. Web view will get read
 // access to the |resourcesRoot| directory. |fileURL| must be contained in
 // |resourcesRoot|. |browserState| is the user browser state to use for
 // loading resources and must not be null.
 - (instancetype)initWithFileURL:(const GURL&)fileURL
@@ skipping 37 matching lines @@
 // Set a |CRWNativeContentDelegate| that will be notified each time the title of
 // the page changes.
 - (void)setDelegate:(id<CRWNativeContentDelegate>)delegate;
 
 // Enables or disables the scrolling in the native view.
 - (void)setScrollEnabled:(BOOL)enabled;
 
 @end
 
 #endif  // IOS_CHROME_BROWSER_UI_STATIC_CONTENT_STATIC_HTML_VIEW_CONTROLLER_H_