Move constrained web dialog code back to chrome/.

chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.h

Index: chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.h
diff --git a/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.h b/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.h
index 5cbecd9843b5cc216d330621d0ff74be193eadcf..2f4a5126811d5e50eedbee72bf447804b706d049 100644
--- a/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.h
+++ b/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.h
@@ -15,9 +15,7 @@
 #include "chrome/browser/ui/tab_modal_confirm_dialog.h"
 #include "ui/web_dialogs/web_dialog_delegate.h"
 
-namespace ui {
 class ConstrainedWebDialogDelegate;
-}
 
 // Displays a tab-modal dialog, i.e. a dialog that will block the current page
 // but still allow the user to switch to a different page.
@@ -44,7 +42,7 @@ class TabModalConfirmDialogWebUI : public TabModalConfirmDialog,
                                bool* out_close_dialog) OVERRIDE;
   virtual bool ShouldShowDialogTitle() const OVERRIDE;
 
-  ui::ConstrainedWebDialogDelegate* constrained_web_dialog_delegate() {
+  ConstrainedWebDialogDelegate* constrained_web_dialog_delegate() {
     return constrained_web_dialog_delegate_;
   }
 
@@ -58,7 +56,7 @@ class TabModalConfirmDialogWebUI : public TabModalConfirmDialog,
   scoped_ptr<TabModalConfirmDialogDelegate> delegate_;
 
   // Deletes itself.
-  ui::ConstrainedWebDialogDelegate* constrained_web_dialog_delegate_;
+  ConstrainedWebDialogDelegate* constrained_web_dialog_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TabModalConfirmDialogWebUI);
 };