[ObjC ARC] Converts ios/web:web to ARC.

ios/web/web_state/ui/crw_web_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_WEB_WEB_STATE_UI_CRW_WEB_CONTROLLER_H_
 #define IOS_WEB_WEB_STATE_UI_CRW_WEB_CONTROLLER_H_
 
 #import <UIKit/UIKit.h>
 
 #import "ios/web/net/crw_request_tracker_delegate.h"
@@ skipping 42 matching lines @@
 // This is an abstract class which must not be instantiated directly.
 // TODO(stuartmorgan): Move all of the navigation APIs out of this class.
 @interface CRWWebController : NSObject<CRWJSInjectionEvaluator,
                                        CRWTouchTrackingDelegate,
                                        UIGestureRecognizerDelegate>
 
 // Whether or not a UIWebView is allowed to exist in this CRWWebController.
 // Defaults to NO; this should be enabled before attempting to access the view.
 @property(nonatomic, assign) BOOL webUsageEnabled;
 
-@property(nonatomic, assign) id<CRWWebDelegate> delegate;
-@property(nonatomic, assign) id<CRWNativeContentProvider> nativeProvider;
-@property(nonatomic, assign)
-    id<CRWSwipeRecognizerProvider> swipeRecognizerProvider;
+@property(nonatomic, weak) id<CRWWebDelegate> delegate;
+@property(nonatomic, weak) id<CRWNativeContentProvider> nativeProvider;
+@property(nonatomic, weak) id<CRWSwipeRecognizerProvider>
+    swipeRecognizerProvider;
 @property(nonatomic, readonly) web::WebState* webState;
 @property(nonatomic, readonly) web::WebStateImpl* webStateImpl;
 
 // The container view used to display content.  If the view has been purged due
 // to low memory, this will recreate it.
-@property(nonatomic, readonly) UIView* view;
+@property(weak, nonatomic, readonly) UIView* view;
 
 // The web view proxy associated with this controller.
-@property(nonatomic, readonly) id<CRWWebViewProxy> webViewProxy;
+@property(weak, nonatomic, readonly) id<CRWWebViewProxy> webViewProxy;
 
 // The view that generates print data when printing. It is nil if printing
 // is not supported.
-@property(nonatomic, readonly) UIView* viewForPrinting;
+@property(weak, nonatomic, readonly) UIView* viewForPrinting;
 
 // Content view was reset due to low memory.  Use placeholder overlay view on
 // next creation.
 @property(nonatomic, readwrite, assign) BOOL usePlaceholderOverlay;
 
 // Returns the current page loading phase.
 @property(nonatomic, readonly) web::LoadPhase loadPhase;
 
 // The fraction of the page load that has completed as a number between 0.0
 // (nothing loaded) and 1.0 (fully loaded).
@@ skipping 181 matching lines @@
 
 // Returns the number of observers registered for this CRWWebController.
 - (NSUInteger)observerCount;
 
 // Loads the HTML into the page at the given URL.
 - (void)loadHTML:(NSString*)HTML forURL:(const GURL&)URL;
 
 @end
 
 #endif  // IOS_WEB_WEB_STATE_UI_CRW_WEB_CONTROLLER_H_