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

third_party/WebKit/Source/core/css/CSSPaintValue.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSPaintValue_h
 #define CSSPaintValue_h
 
 #include "core/css/CSSCustomIdentValue.h"
 #include "core/css/CSSImageGeneratorValue.h"
 #include "core/css/CSSPaintImageGenerator.h"
@@ skipping 13 matching lines @@
                                Vector<RefPtr<CSSVariableData>>& variable_data) {
     return new CSSPaintValue(name, variable_data);
   }
 
   ~CSSPaintValue();
 
   String CustomCSSText() const;
 
   String GetName() const;
 
-  PassRefPtr<Image> GetImage(const LayoutObject&, const IntSize&, float zoom);
+  PassRefPtr<Image> GetImage(const LayoutObject&, const IntSize&);
   bool IsFixedSize() const { return false; }
   IntSize FixedSize(const LayoutObject&) { return IntSize(); }
 
   bool IsPending() const { return true; }
   bool KnownToBeOpaque(const LayoutObject&) const;
 
   void LoadSubimages(const Document&) {}
 
   bool Equals(const CSSPaintValue&) const;
 
@@ skipping 40 matching lines @@
   Member<Observer> paint_image_generator_observer_;
   Member<CSSStyleValueVector> parsed_input_arguments_;
   Vector<RefPtr<CSSVariableData>> argument_variable_data_;
 };
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSPaintValue, IsPaintValue());
 
 }  // namespace blink
 
 #endif  // CSSPaintValue_h