Adds filter support for offscreen canvas

third_party/WebKit/Source/core/css/resolver/ElementStyleResources.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 26 matching lines @@
 #include "core/style/StyleFetchedImage.h"
 #include "core/style/StyleFetchedImageSet.h"
 #include "core/style/StyleGeneratedImage.h"
 #include "core/style/StyleImage.h"
 #include "core/style/StyleInvalidImage.h"
 #include "core/style/StylePendingImage.h"
 #include "platform/graphics/filters/FilterOperation.h"
 
 namespace blink {
 
+ElementStyleResources::ElementStyleResources()

[esprehn, 2016/09/12 20:53:12]

All the methods crash

+{
+}
+
 ElementStyleResources::ElementStyleResources(Document& document, float deviceScaleFactor)
     : m_document(&document)
     , m_deviceScaleFactor(deviceScaleFactor)
 {
 }
 
 StyleImage* ElementStyleResources::styleImage(CSSPropertyID property, const CSSValue& value)
 {
     if (value.isImageValue())
         return cachedOrPendingFromValue(property, toCSSImageValue(value));
@@ skipping 195 matching lines @@
     }
 }
 
 void ElementStyleResources::loadPendingResources(ComputedStyle* computedStyle)
 {
     loadPendingImages(computedStyle);
     loadPendingSVGDocuments(computedStyle);
 }
 
 } // namespace blink