webui: rename "DialogClose" to "dialogClose" to match other webui messages.

ui/views/controls/webview/web_dialog_view.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_WEBVIEW_WEB_DIALOG_VIEW_H_
 #define UI_VIEWS_CONTROLS_WEBVIEW_WEB_DIALOG_VIEW_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 120 matching lines @@
   views::WebView* web_view_;
 
   // Whether user is attempting to close the dialog and we are processing
   // beforeunload event.
   bool is_attempting_close_dialog_;
 
   // Whether beforeunload event has been fired and we have finished processing
   // beforeunload event.
   bool before_unload_fired_;
 
-  // Whether the dialog is closed from WebUI in response to a "DialogClose"
+  // Whether the dialog is closed from WebUI in response to a "dialogClose"
   // message.
   bool closed_via_webui_;
 
-  // A json string returned to WebUI from a "DialogClosed" message.
+  // A json string returned to WebUI from a "dialogClose" message.
   std::string dialog_close_retval_;
 
   // Whether CloseContents() has been called.
   bool close_contents_called_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDialogView);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_WEBVIEW_WEB_DIALOG_VIEW_H_