Decouple content transform fiddling from SVGRenderingContext::renderSubtree

Source/core/svg/graphics/filters/SVGFEImage.cpp

Index: Source/core/svg/graphics/filters/SVGFEImage.cpp
diff --git a/Source/core/svg/graphics/filters/SVGFEImage.cpp b/Source/core/svg/graphics/filters/SVGFEImage.cpp
index 4e407d429d57bb513639e6502ce709ff7cb94fbe..5d7297075688c832f5ccdc96867581c8dc24e5a8 100644
--- a/Source/core/svg/graphics/filters/SVGFEImage.cpp
+++ b/Source/core/svg/graphics/filters/SVGFEImage.cpp
@@ -165,12 +165,11 @@ PassRefPtr<SkImageFilter> FEImage::createImageFilterForRenderer(RenderObject* re
     GraphicsContext* context = builder->context();
     if (!context)
         return adoptRef(SkBitmapSource::Create(SkBitmap()));
-    AffineTransform contentTransformation;
     FloatRect bounds(FloatPoint(), dstRect.size());
     context->save();
     context->beginRecording(bounds);
     context->concatCTM(transform);
-    SVGRenderingContext::renderSubtree(context, renderer, contentTransformation);
+    SVGRenderingContext::renderSubtree(context, renderer);
     RefPtr<DisplayList> displayList = context->endRecording();
     context->restore();
     RefPtr<SkImageFilter> result = adoptRef(SkPictureImageFilter::Create(displayList->picture(), dstRect));