Make <iframe> containing SVG behave as every other <iframe>

Source/core/rendering/RenderEmbeddedObject.cpp

Index: Source/core/rendering/RenderEmbeddedObject.cpp
diff --git a/Source/core/rendering/RenderEmbeddedObject.cpp b/Source/core/rendering/RenderEmbeddedObject.cpp
index b26c4ad292552973d6cbc04cf8b2d6ba106127b4..eaf7f167453ee0061d59064e17e8d334c8592cc9 100644
--- a/Source/core/rendering/RenderEmbeddedObject.cpp
+++ b/Source/core/rendering/RenderEmbeddedObject.cpp
@@ -251,4 +251,11 @@ CompositingReasons RenderEmbeddedObject::additionalCompositingReasons(Compositin
     return CompositingReasonNone;
 }
 
+RenderBox* RenderEmbeddedObject::embeddedContentBox() const
+{
+    if (!node() || !widget() || !widget()->isFrameView())
+        return 0;
+    return toFrameView(widget())->embeddedContentBox();
+}
+
 }