Remove CWV class and move setting User Agent to CWVWebViewConfiguration.

ios/web_view/internal/cwv_web_view.mm

Index: ios/web_view/internal/cwv_web_view.mm
diff --git a/ios/web_view/internal/cwv_web_view.mm b/ios/web_view/internal/cwv_web_view.mm
index 08fb4d8dc30b2994005f51fbd5799b2b1efbc42c..e77aedcbe076b145970c3055bfd4f4c510f79fae 100644
--- a/ios/web_view/internal/cwv_web_view.mm
+++ b/ios/web_view/internal/cwv_web_view.mm
@@ -25,6 +25,7 @@
 #import "ios/web_view/internal/translate/web_view_translate_client.h"
 #include "ios/web_view/internal/web_view_browser_state.h"
 #import "ios/web_view/internal/web_view_java_script_dialog_presenter.h"
+#import "ios/web_view/internal/web_view_web_client.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"
@@ -34,7 +35,6 @@
 #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;
@@ -46,6 +46,8 @@
       _javaScriptDialogPresenter;
 }
 
+// The configuration of the web view.

[Eugene But (OOO till 7-30), 2017/04/11 17:52:41]

s/The configuration of the web view/Redefine the property as readwrite ?

[michaeldo, 2017/04/11 21:57:02]

Done.

+@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;
@@ -60,6 +62,11 @@
 @synthesize estimatedProgress = _estimatedProgress;
 @synthesize UIDelegate = _UIDelegate;
 
++ (void)setUserAgentProduct:(NSString*)product {
+  ios_web_view::WebViewWebClient* client = [CWVWebViewConfiguration webClient];
+  client->SetProduct(base::SysNSStringToUTF8(product));
+}
+
 - (instancetype)initWithFrame:(CGRect)frame
                 configuration:(CWVWebViewConfiguration*)configuration {
   self = [super initWithFrame:frame];
@@ -67,7 +74,7 @@
     _configuration = [configuration copy];
 
     web::WebState::CreateParams webStateCreateParams(
-        configuration.browserState);
+        _configuration.browserState);
     _webState = web::WebState::Create(webStateCreateParams);
     _webState->SetWebUsageEnabled(true);