Moved WebView(ScrollView)Proxy files to ui subdirectory.

ios/chrome/browser/ui/DEPS

 specific_include_rules = {
   # TODO(crbug.com/620134): Remove these exceptions.
   "^chrome_web_view_factory.*\.mm$": [
     "+ios/web/net/request_group_util.h",
     "+ios/web/net/request_tracker_impl.h",
   ],
 
   # TODO(crbug.com/620489): Remove these exceptions.
   "^browser_view_controller\.mm$": [
     "+ios/web/navigation/crw_session_controller.h",
     "+ios/web/navigation/navigation_manager_impl.h",
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
   "^browser_view_controller_unittest\.mm$": [
     "+ios/web/navigation/crw_session_controller.h",
     "+ios/web/web_state/ui/crw_web_controller.h",
     "+ios/web/web_state/web_state_impl.h",
   ],
 
   # TODO(crbug.com/620139): Remove this exception.
   "^fullscreen_controller\.mm$": [
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
 
   # TODO(crbug.com/620143): Remove these exceptions.
   "^fullscreen_controller_unittest\.mm$": [
-    "+ios/web/web_state/crw_web_view_proxy_impl.h",
+    "+ios/web/web_state/ui/crw_web_view_proxy_impl.h",
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
 
   # TODO(crbug.com/620139): Remove these exceptions.
   "^fullscreen_controller_unittest\.mm$": [
-    "+ios/web/web_state/crw_web_view_proxy_impl.h",
+    "+ios/web/web_state/ui/crw_web_view_proxy_impl.h",
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
 
   # TODO(crbug.com/620147): Remove these exceptions.
   "^open_in_controller\.mm$": [
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
   "^open_in_controller_unittest\.mm$": [
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
 
   # TODO(crbug.com/620438): Remove this exception.
   "^preload_controller\.mm$": [
     "+ios/web/web_state/ui/crw_web_controller.h",
   ],
 }