Introduce new async IPC message to get file icons

third_party/WebKit/WebKit/chromium/public/WebViewClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
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 #include "WebTextDirection.h"
 #include "WebWidgetClient.h"
 
 namespace WebKit {
 
 class WebAccessibilityObject;
 class WebDragData;
 class WebFileChooserCompletion;
 class WebFrame;
 class WebGeolocationService;
+class WebIconLoadingCompletion;
 class WebImage;
 class WebNode;
 class WebNotificationPresenter;
 class WebRange;
 class WebStorageNamespace;
 class WebURL;
 class WebView;
 class WebWidget;
 struct WebConsoleMessage;
 struct WebContextMenuData;
@@ skipping 30 matching lines @@
 
     // Called when script in the page calls window.print().  If frame is
     // non-null, then it selects a particular frame, including its
     // children, to print.  Otherwise, the main frame and its children
     // should be printed.
     virtual void printPage(WebFrame*) { }
 
     // Called to retrieve the provider of desktop notifications.
     virtual WebNotificationPresenter* notificationPresenter() { return 0; }
 
+    // Called to request an icon for the specified filenames.
+    // The icon is shown in a file upload control.
+    virtual bool chooseIconForFiles(const WebVector<WebString>& filenames, WebIconLoadingCompletion*) { return false; }
 
     // Navigational --------------------------------------------------------
 
     // These notifications bracket any loading that occurs in the WebView.
     virtual void didStartLoading() { }
     virtual void didStopLoading() { }
 
 
     // Editing -------------------------------------------------------------
 
@@ skipping 183 matching lines @@
     // Access the embedder API for geolocation services.
     virtual WebKit::WebGeolocationService* geolocationService() { return 0; }
 
 protected:
     ~WebViewClient() { }
 };
 
 } // namespace WebKit
 
 #endif