Remove unnecessary zoom argument from GetImage() as its value is always available through the Layou…

third_party/WebKit/Source/core/layout/LayoutImageResource.cpp

 /*
  * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
  * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
  * Copyright (C) 2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
@@ skipping 76 matching lines @@
   if (!cached_image_)
     return LayoutSize();
   LayoutSize size = cached_image_->ImageSize(
       LayoutObject::ShouldRespectImageOrientation(layout_object_), multiplier);
   if (layout_object_ && layout_object_->IsLayoutImage() && size.Width() &&
       size.Height())
     size.Scale(ToLayoutImage(layout_object_)->ImageDevicePixelRatio());
   return size;
 }
 
-PassRefPtr<Image> LayoutImageResource::GetImage(const IntSize& container_size,
-                                                float zoom) const {
+PassRefPtr<Image> LayoutImageResource::GetImage(
+    const IntSize& container_size) const {
   if (!cached_image_)
     return Image::NullImage();
 
   if (!cached_image_->GetImage()->IsSVGImage())
     return cached_image_->GetImage();
 
   KURL url;
   SVGImage* svg_image = ToSVGImage(cached_image_->GetImage());
   Node* node = layout_object_->GetNode();
   if (node && node->IsElementNode()) {
     const AtomicString& url_string = ToElement(node)->ImageSourceURL();
     url = node->GetDocument().CompleteURL(url_string);
   }
-  return SVGImageForContainer::Create(svg_image, container_size, zoom, url);
+  return SVGImageForContainer::Create(
+      svg_image, container_size, layout_object_->StyleRef().EffectiveZoom(),
+      url);
 }
 
 bool LayoutImageResource::MaybeAnimated() const {
   Image* image = cached_image_ ? cached_image_->GetImage() : Image::NullImage();
   return image->MaybeAnimated();
 }
 
 }  // namespace blink