Support createImageBitmap from a SVG image

third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp

Index: third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
diff --git a/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp b/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
index bf916658585ccc7a05988b08e658f67208bfb4e9..1444304d763108d40e9b1b14a962dd0335173ff3 100644
--- a/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
+++ b/third_party/WebKit/Source/core/svg/graphics/SVGImage.cpp
@@ -168,6 +168,24 @@ static float resolveHeightForRatio(float width, const FloatSize& intrinsicRatio)
     return width * intrinsicRatio.height() / intrinsicRatio.width();
 }
 
+bool SVGImage::hasIntrinsicSize()
+{
+    SVGSVGElement* svg = svgRootElement(m_page.get());
+    if (!svg)
+        return false;
+
+    LayoutSVGRoot* layoutObject = toLayoutSVGRoot(svg->layoutObject());
+    if (!layoutObject)
+        return false;
+
+    LayoutReplaced::IntrinsicSizingInfo intrinsicSizingInfo;
+    layoutObject->computeIntrinsicSizingInfo(intrinsicSizingInfo);
+
+    if (intrinsicSizingInfo.hasWidth && intrinsicSizingInfo.hasHeight)
+        return true;
+    return false;
+}
+
 FloatSize SVGImage::concreteObjectSize(const FloatSize& defaultObjectSize) const
 {
     SVGSVGElement* svg = svgRootElement(m_page.get());