Reversed WebState <-> CRWWebController ownership.

ios/web/web_state/ui/crw_web_controller+protected.h

 // Copyright 2014 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_PROTECTED_H_
 #define IOS_WEB_WEB_STATE_UI_CRW_WEB_CONTROLLER_PROTECTED_H_
 
 #import "ios/web/web_state/ui/crw_web_controller.h"
 
 #import <WebKit/WebKit.h>
@@ skipping 119 matching lines @@
 // navigation manager and treating that as authoritative. For now, this allows
 // sharing the flow that's currently in the superclass.
 @property(nonatomic, readonly) GURL documentURL;
 
 // YES if the user has interacted with the content area since the last URL
 // change.
 @property(nonatomic, readonly) BOOL interactionRegisteredSinceLastURLChange;
 
 - (CRWWebControllerPendingNavigationInfo*)pendingNavigationInfo;
 
-// Designated initializer.
-- (instancetype)initWithWebState:(std::unique_ptr<web::WebStateImpl>)webState;
+// Designated initializer. Initializes web controller with |webState|. The
+// calling code must retain the ownership of |webState|.
+- (instancetype)initWithWebState:(web::WebStateImpl*)webState;
 
 // Creates a web view if it's not yet created.
 - (void)ensureWebViewCreated;
 
 // Destroys the web view by setting webView property to nil.
 - (void)resetWebView;
 
 // Sets _documentURL to newURL, and updates any relevant state information.
 - (void)setDocumentURL:(const GURL&)newURL;
 
@@ skipping 350 matching lines @@
 
 // Converts MIME type string to WebViewDocumentType.
 - (web::WebViewDocumentType)documentTypeFromMIMEType:(NSString*)MIMEType;
 
 // Extracts Referer value from WKNavigationAction request header.
 - (NSString*)refererFromNavigationAction:(WKNavigationAction*)action;
 
 @end
 
 #endif  // IOS_WEB_WEB_STATE_UI_CRW_WEB_CONTROLLER_PROTECTED_H_