Replace prefix of ios/web_view C++ classes.

ios/web_view/internal/criwv_web_client.mm

-// 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.
-
-#import "ios/web_view/internal/criwv_web_client.h"
-
-#include "base/strings/sys_string_conversions.h"
-#include "ios/web/public/user_agent.h"
-#include "ios/web_view/internal/criwv_browser_state.h"
-#import "ios/web_view/internal/criwv_web_main_parts.h"
-#import "ios/web_view/public/cwv_delegate.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-namespace ios_web_view {
-
-CRIWVWebClient::CRIWVWebClient(id<CWVDelegate> delegate)
-    : delegate_(delegate), web_main_parts_(nullptr) {}
-
-CRIWVWebClient::~CRIWVWebClient() {}
-
-web::WebMainParts* CRIWVWebClient::CreateWebMainParts() {
-  web_main_parts_ = new CRIWVWebMainParts(delegate_);
-  return web_main_parts_;
-}
-
-CRIWVBrowserState* CRIWVWebClient::browser_state() const {
-  return web_main_parts_->browser_state();
-}
-
-CRIWVBrowserState* CRIWVWebClient::off_the_record_browser_state() const {
-  return web_main_parts_->off_the_record_browser_state();
-}
-
-std::string CRIWVWebClient::GetProduct() const {
-  return base::SysNSStringToUTF8([delegate_ partialUserAgent]);
-}
-
-std::string CRIWVWebClient::GetUserAgent(bool desktop_user_agent) const {
-  std::string product = GetProduct();
-  return web::BuildUserAgentFromProduct(product);
-}
-
-}  // namespace ios_web_view