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

third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp

Index: third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp
diff --git a/third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp b/third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp
index 9d241c0b81ac9e969446a9a89eca6ce12e95dfce..57746d373e5551c7657bfb0ad6bbd330f1814ded 100644
--- a/third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp
+++ b/third_party/WebKit/Source/modules/csspaint/CSSPaintImageGeneratorImpl.cpp
@@ -52,10 +52,8 @@ void CSSPaintImageGeneratorImpl::SetDefinition(CSSPaintDefinition* definition) {
 PassRefPtr<Image> CSSPaintImageGeneratorImpl::Paint(
     const LayoutObject& layout_object,
     const IntSize& size,
-    float zoom,
     const CSSStyleValueVector* data) {
-  return definition_ ? definition_->Paint(layout_object, size, zoom, data)
-                     : nullptr;
+  return definition_ ? definition_->Paint(layout_object, size, data) : nullptr;
 }
 
 const Vector<CSSPropertyID>&