Add a origin clean flag in ImageBitmap class

third_party/WebKit/Source/core/html/HTMLImageElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 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 681 matching lines @@
         return ScriptPromise();
     }
     if (cachedImage()->image()->isSVGImage()) {
         exceptionState.throwDOMException(InvalidStateError, "The image element contains an SVG image, which is unsupported.");
         return ScriptPromise();
     }
     if (!sw || !sh) {
         exceptionState.throwDOMException(IndexSizeError, String::format("The source %s provided is 0.", sw ? "height" : "width"));
         return ScriptPromise();
     }
-    if (!cachedImage()->image()->currentFrameHasSingleSecurityOrigin()) {
-        exceptionState.throwSecurityError("The source image contains image data from multiple origins.");
-        return ScriptPromise();
-    }
-    Document* document = eventTarget.toDOMWindow()->document();
-    if (!cachedImage()->passesAccessControlCheck(document->securityOrigin()) && document->securityOrigin()->taintsCanvas(src())) {
-        exceptionState.throwSecurityError("Cross-origin access to the source image is denied.");
-        return ScriptPromise();
-    }
-    return ImageBitmapSource::fulfillImageBitmap(scriptState, ImageBitmap::create(this, IntRect(sx, sy, sw, sh)));
+    return ImageBitmapSource::fulfillImageBitmap(scriptState, ImageBitmap::create(this, IntRect(sx, sy, sw, sh), eventTarget.toDOMWindow()->document()));
 }
 
 void HTMLImageElement::selectSourceURL(ImageLoader::UpdateFromElementBehavior behavior)
 {
     if (!document().isActive())
         return;
 
     bool foundURL = false;
     ImageCandidate candidate = findBestFitImageFromPictureParent();
     if (!candidate.isEmpty()) {
@@ skipping 92 matching lines @@
 {
     ImageResource* image = cachedImage();
     if (!image)
         return IntSize();
     LayoutSize lSize = image->imageSize(LayoutObject::shouldRespectImageOrientation(layoutObject()), 1.0f);
     ASSERT(lSize.fraction().isZero());
     return IntSize(lSize.width(), lSize.height());
 }
 
 }