Move the web dialogs code to src/ui/web_dialogs from src/chrome

chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc

Index: chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc
diff --git a/chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc b/chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc
index 0ee4a84e4ebca269e7365a4da06dc7e77cf748a2..dc0c8430cb0a6f84962aeef56ac51de1c81ec7e2 100644
--- a/chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc
+++ b/chrome/browser/ui/gtk/constrained_web_dialog_delegate_gtk.cc
@@ -7,15 +7,18 @@
 #include "chrome/browser/ui/gtk/constrained_window_gtk.h"
 #include "chrome/browser/ui/gtk/tab_contents_container_gtk.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
-#include "chrome/browser/ui/webui/web_dialog_delegate.h"
-#include "chrome/browser/ui/webui/web_dialog_ui.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/gtk/gtk_hig_constants.h"
 #include "ui/gfx/size.h"
+#include "ui/web_dialogs/web_dialog_delegate.h"
+#include "ui/web_dialogs/web_dialog_ui.h"
 
 using content::WebContents;
+using ui::ConstrainedWebDialogDelegate;
+using ui::ConstrainedWebDialogUI;
+using ui::WebDialogDelegate;
 
 class ConstrainedWebDialogDelegateGtk : public ConstrainedWindowGtkDelegate,
                                         public ConstrainedWebDialogDelegate {
@@ -94,9 +97,7 @@ ConstrainedWebDialogDelegateGtk::ConstrainedWebDialogDelegateGtk(
   gtk_widget_show_all(GetWidgetRoot());
 }
 
-// static
-ConstrainedWebDialogDelegate*
-    ConstrainedWebDialogUI::CreateConstrainedWebDialog(
+ConstrainedWebDialogDelegate* ui::CreateConstrainedWebDialog(
       Profile* profile,
       WebDialogDelegate* delegate,
       WebDialogWebContentsDelegate* tab_delegate,