Adds SVGImageElement as a CanvasImageSource

third_party/WebKit/Source/core/svg/SVGImageElement.cpp

Index: third_party/WebKit/Source/core/svg/SVGImageElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGImageElement.cpp b/third_party/WebKit/Source/core/svg/SVGImageElement.cpp
index 99f083eae214dccc6296751d4afa06fb065655c7..3d8e11104862edc759b4922f1e8e7e44d7a3c401 100644
--- a/third_party/WebKit/Source/core/svg/SVGImageElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGImageElement.cpp
@@ -204,4 +204,53 @@ void SVGImageElement::didMoveToNewDocument(Document& oldDocument) {
   SVGGraphicsElement::didMoveToNewDocument(oldDocument);
 }
 
+PassRefPtr<Image> SVGImageElement::getSourceImageForCanvas(

[fs, 2017/03/01 21:20:41]

This (and other method implementations) appear to be missing the intrinsic
sizing handling from HTMLImageElement. AFAIK the spec pretty much calls out that
SVGImageElement and HTMLImageElement are treated identically so there would seem
to be a decent chance of using the same code for these (something keyed off the
ImageLoader would probably make sense?)

[fserb, 2017/03/06 21:05:13]

Done.

+    SourceImageStatus* status,
+    AccelerationHint hint,
+    SnapshotReason reason,
+    const FloatSize& defaultObjectSize) const {
+  if (!imageLoader().imageComplete() || !cachedImage()) {
+    *status = IncompleteSourceImageStatus;
+    return nullptr;
+  }
+
+  if (cachedImage()->errorOccurred()) {
+    *status = UndecodableSourceImageStatus;
+    return nullptr;
+  }
+
+  *status = NormalSourceImageStatus;
+  return cachedImage()->getImage()->imageForDefaultFrame();
+}
+
+bool SVGImageElement::wouldTaintOrigin(
+    SecurityOrigin* destinationSecurityOrigin) const {
+  if (!cachedImage())
+    return false;
+  return !cachedImage()->isAccessAllowed(destinationSecurityOrigin);
+}
+
+FloatSize SVGImageElement::elementSize(
+    const FloatSize& defaultObjectSize) const {
+  if (!cachedImage())
+    return FloatSize();
+  return FloatSize(cachedImage()->getImage()->size());
+}
+
+bool SVGImageElement::isAccelerated() const {
+  return false;
+}
+
+int SVGImageElement::sourceWidth() {
+  if (!cachedImage())
+    return 0;
+  return cachedImage()->getImage()->width();
+}
+
+int SVGImageElement::sourceHeight() {
+  if (!cachedImage())
+    return 0;
+  return cachedImage()->getImage()->height();
+}
+
 }  // namespace blink