Remove CWV class and move setting User Agent to CWVWebViewConfiguration.

ios/web_view/internal/cwv_web_view.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/public/cwv_web_view.h"
 
 #include <memory>
 #include <utility>
 
 #import "base/ios/weak_nsobject.h"
@@ skipping 16 matching lines @@
 #import "ios/web_view/internal/web_view_java_script_dialog_presenter.h"
 #import "ios/web_view/internal/web_view_web_state_policy_decider.h"
 #import "ios/web_view/public/cwv_navigation_delegate.h"
 #import "ios/web_view/public/cwv_ui_delegate.h"
 #import "ios/web_view/public/cwv_web_view_configuration.h"
 #import "net/base/mac/url_conversions.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 @interface CWVWebView ()<CRWWebStateDelegate, CRWWebStateObserver> {
-  CWVWebViewConfiguration* _configuration;
   std::unique_ptr<web::WebState> _webState;
   std::unique_ptr<web::WebStateDelegateBridge> _webStateDelegate;
   std::unique_ptr<web::WebStateObserverBridge> _webStateObserver;
   std::unique_ptr<ios_web_view::WebViewWebStatePolicyDecider>
       _webStatePolicyDecider;
   double _estimatedProgress;
   // Handles presentation of JavaScript dialogs.
   std::unique_ptr<ios_web_view::WebViewJavaScriptDialogPresenter>
       _javaScriptDialogPresenter;
 }
 
+// Redefine the property as readwrite.
+@property(nonatomic, copy) CWVWebViewConfiguration* configuration;
 // Redefine the property as readwrite to define -setEstimatedProgress:, which
 // can be used to send KVO notification.
 @property(nonatomic, readwrite) double estimatedProgress;
 
 @end
 
+static NSString* gUserAgentProduct = nil;
+
 @implementation CWVWebView
 
 @synthesize configuration = _configuration;
 @synthesize navigationDelegate = _navigationDelegate;
 @synthesize translationDelegate = _translationDelegate;
 @synthesize estimatedProgress = _estimatedProgress;
 @synthesize UIDelegate = _UIDelegate;
 
++ (NSString*)userAgentProduct {
+  return gUserAgentProduct;
+}
+
++ (void)setUserAgentProduct:(NSString*)product {
+  gUserAgentProduct = product;

[Eugene But (OOO till 7-30), 2017/04/12 00:46:17]

gUserAgentProduct = [product copy];

[michaeldo, 2017/04/12 17:16:48]

Done.

+}
+
 - (instancetype)initWithFrame:(CGRect)frame
                 configuration:(CWVWebViewConfiguration*)configuration {
   self = [super initWithFrame:frame];
   if (self) {
     _configuration = [configuration copy];
 
     web::WebState::CreateParams webStateCreateParams(
-        configuration.browserState);
+        _configuration.browserState);
     _webState = web::WebState::Create(webStateCreateParams);
     _webState->SetWebUsageEnabled(true);
 
     _webStateObserver =
         base::MakeUnique<web::WebStateObserverBridge>(_webState.get(), self);
     _webStateDelegate = base::MakeUnique<web::WebStateDelegateBridge>(self);
     _webState->SetDelegate(_webStateDelegate.get());
 
     _webStatePolicyDecider =
         base::MakeUnique<ios_web_view::WebViewWebStatePolicyDecider>(
@@ skipping 182 matching lines @@
     [_UIDelegate webViewDidClose:self];
   }
 }
 
 - (web::JavaScriptDialogPresenter*)javaScriptDialogPresenterForWebState:
     (web::WebState*)webState {
   return _javaScriptDialogPresenter.get();
 }
 
 @end