Rename ios/web_view public delegates from CRIWV to CWV prefix.

ios/web_view/public/criwv_web_view_delegate.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_VIEW_PUBLIC_CRIWV_WEB_VIEW_DELEGATE_H_
-#define IOS_WEB_VIEW_PUBLIC_CRIWV_WEB_VIEW_DELEGATE_H_
-
-#import <Foundation/Foundation.h>
-
-@protocol CRIWVTranslateDelegate;
-@class CWVWebView;
-
-typedef NS_OPTIONS(NSUInteger, CRIWVWebViewUpdateType) {
-  CRIWVWebViewUpdateTypeProgress = 1 << 0,
-  CRIWVWebViewUpdateTypeTitle = 1 << 1,
-  CRIWVWebViewUpdateTypeURL = 1 << 2
-};
-
-// Delegate protocol for CRIWVWebViews.  Allows embedders to customize web view
-// behavior and receive updates on page load progress.
-@protocol CRIWVWebViewDelegate<NSObject>
-
-@optional
-
-- (void)webView:(CWVWebView*)webView
-    didFinishLoadingWithURL:(NSURL*)url
-                loadSuccess:(BOOL)loadSuccess;
-
-- (void)webView:(CWVWebView*)webView
-    didUpdateWithChanges:(CRIWVWebViewUpdateType)changes;
-
-- (id<CRIWVTranslateDelegate>)translateDelegate;
-
-@end
-
-#endif  // IOS_WEB_VIEW_PUBLIC_CRIWV_WEB_VIEW_DELEGATE_H_