Reload image bypassing the cache

public/web/WebContextMenuData.h

 /*
  * Copyright (C) 2009, 2012 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
@@ skipping 60 matching lines @@
 
     // The absolute URL of the link that is in context.
     WebURL linkURL;
 
     // The absolute URL of the image/video/audio that is in context.
     WebURL srcURL;
 
     // Whether the image in context is a null.
     bool hasImageContents;
 
+    // If |media_type| is MediaTypeImage and |has_image_contents| is true, then
+    // this contains the image Chrome Proxy response header.
+    std::string imageChromeProxyResponseHeader;
+
     // The absolute URL of the page in context.
     WebURL pageURL;
 
     // The absolute keyword search URL including the %s search tag when the
     // "Add as search engine..." option is clicked (left empty if not used).
     WebURL keywordURL;
 
     // The absolute URL of the subframe in context.
     WebURL frameURL;
 
@@ skipping 89 matching lines @@
         , isEditable(false)
         , writingDirectionDefault(CheckableMenuItemDisabled)
         , writingDirectionLeftToRight(CheckableMenuItemEnabled)
         , writingDirectionRightToLeft(CheckableMenuItemEnabled)
         , editFlags(0) { }
 };
 
 } // namespace blink
 
 #endif