Moved WebView(ScrollView)Proxy files to ui subdirectory.

ios/web/public/web_state/ui/crw_web_view_proxy.h

Index: ios/web/public/web_state/ui/crw_web_view_proxy.h
diff --git a/ios/web/public/web_state/crw_web_view_proxy.h b/ios/web/public/web_state/ui/crw_web_view_proxy.h
similarity index 93%
rename from ios/web/public/web_state/crw_web_view_proxy.h
rename to ios/web/public/web_state/ui/crw_web_view_proxy.h
index 81125e7cc988ddb31bbdd035f6c726a828579976..7a5768c76e73c53803252bf794ee228a9cfae796 100644
--- a/ios/web/public/web_state/crw_web_view_proxy.h
+++ b/ios/web/public/web_state/ui/crw_web_view_proxy.h
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef IOS_WEB_PUBLIC_WEB_STATE_CRW_WEB_VIEW_PROXY_H_
-#define IOS_WEB_PUBLIC_WEB_STATE_CRW_WEB_VIEW_PROXY_H_
+#ifndef IOS_WEB_PUBLIC_WEB_STATE_UI_CRW_WEB_VIEW_PROXY_H_
+#define IOS_WEB_PUBLIC_WEB_STATE_UI_CRW_WEB_VIEW_PROXY_H_
 
 #import <UIKit/UIKit.h>
 
-
 @class CRWWebViewScrollViewProxy;
 
 // Provides an interface for embedders to access the WebState's web view in a
@@ -74,4 +73,4 @@
 
 @end
 
-#endif  // IOS_WEB_PUBLIC_WEB_STATE_CRW_WEB_VIEW_PROXY_H_
+#endif  // IOS_WEB_PUBLIC_WEB_STATE_UI_CRW_WEB_VIEW_PROXY_H_