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

chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc

Index: chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
diff --git a/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc b/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
index a32a22f5fde09f30c4c73d4b0507dfa47d751e4b..30841a22c66d01c14aee9358a8b5df3d9fe6ab18 100644
--- a/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
+++ b/chrome/browser/ui/webui/tab_modal_confirm_dialog_webui.cc
@@ -20,7 +20,6 @@
 #include "chrome/browser/ui/tab_modal_confirm_dialog_delegate.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
-#include "chrome/browser/ui/webui/constrained_web_dialog_ui.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/url_constants.h"
 #include "grit/browser_resources.h"
@@ -28,6 +27,7 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/size.h"
+#include "ui/web_dialogs/constrained_web_dialog_ui.h"
 
 using content::WebContents;
 using content::WebUIMessageHandler;
@@ -56,10 +56,10 @@ TabModalConfirmDialogWebUI::TabModalConfirmDialogWebUI(
   ChromeURLDataManager::AddDataSource(profile, data_source);
 
   constrained_web_dialog_delegate_ =
-      ConstrainedWebDialogUI::CreateConstrainedWebDialog(profile,
-                                                         this,
-                                                         NULL,
-                                                         wrapper);
+      ui::CreateConstrainedWebDialog(profile,
+                                     this,
+                                     NULL,
+                                     wrapper);
   delegate_->set_window(constrained_web_dialog_delegate_->window());
 }