Update CRIWVWebMainParts prefix.

ios/web_view/internal/criwv_web_main_parts.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_INTERNAL_CRIWV_WEB_MAIN_PARTS_H_
-#define IOS_WEB_VIEW_INTERNAL_CRIWV_WEB_MAIN_PARTS_H_
-
-#include "ios/web/public/app/web_main_parts.h"
-
-#include <memory>
-
-@protocol CWVDelegate;
-
-namespace ios_web_view {
-class CWVBrowserState;
-
-// CWV-specific implementation of WebMainParts.
-class CRIWVWebMainParts : public web::WebMainParts {
- public:
-  explicit CRIWVWebMainParts(id<CWVDelegate> delegate);
-  ~CRIWVWebMainParts() override;
-
-  // WebMainParts implementation.
-  void PreMainMessageLoopRun() override;
-
-  // Returns the CWVBrowserState for this embedder.
-  CWVBrowserState* browser_state() const { return browser_state_.get(); }
-
-  // Returns the off the record CWVBrowserState for this embedder.
-  CWVBrowserState* off_the_record_browser_state() const {
-    return off_the_record_browser_state_.get();
-  }
-
- private:
-  // This object's delegate.
-  __weak id<CWVDelegate> delegate_;
-
-  // The BrowserState for this embedder.
-  std::unique_ptr<CWVBrowserState> browser_state_;
-
-  // The BrowserState for this embedder.
-  std::unique_ptr<CWVBrowserState> off_the_record_browser_state_;
-};
-
-}  // namespace ios_web_view
-
-#endif  // IOS_WEB_VIEW_INTERNAL_CRIWV_WEB_MAIN_PARTS_H_