CSSValue Immediates: Change CSSValue to an object instead of a pointer

Source/modules/canvas2d/CanvasRenderingContext2DState.cpp

 // Copyright 2015 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.
 
 #include "config.h"
 
 #include "modules/canvas2d/CanvasRenderingContext2DState.h"
 
 #include "core/css/CSSFontSelector.h"
 #include "core/css/resolver/FilterOperationResolver.h"
@@ skipping 323 matching lines @@
     if (!m_resolvedFilter) {
         RefPtr<ComputedStyle> filterStyle = ComputedStyle::create();
         // Must set font in case the filter uses any font-relative units (em, ex)
         filterStyle->setFont(font);
 
         StyleResolverState resolverState(styleResolutionHost->document(), styleResolutionHost, filterStyle.get());
         resolverState.setStyle(filterStyle);
 
         // TODO(junov): crbug.com/502877 Feed m_fillStyle and m_strokeStyle into FillPaint and
         // StrokePaint respectively for filters that reference SVG.
-        StyleBuilder::applyProperty(CSSPropertyWebkitFilter, resolverState, m_filterValue.get());
+        StyleBuilder::applyProperty(CSSPropertyWebkitFilter, resolverState, *m_filterValue);
         RefPtrWillBeRawPtr<FilterEffectBuilder> filterEffectBuilder = FilterEffectBuilder::create();
         const float effectiveZoom = 1.0f; // Deliberately ignore zoom on the canvas element
         filterEffectBuilder->build(styleResolutionHost, filterStyle->filter(), effectiveZoom);
 
         SkiaImageFilterBuilder imageFilterBuilder;
         RefPtrWillBeRawPtr<FilterEffect> lastEffect = filterEffectBuilder->lastEffect();
         m_resolvedFilter = imageFilterBuilder.build(lastEffect.get(), ColorSpaceDeviceRGB);
     }
 
     return m_resolvedFilter.get();
@@ skipping 72 matching lines @@
     m_shadowBlur = shadowBlur;
     shadowParameterChanged();
 }
 
 void CanvasRenderingContext2DState::setShadowColor(SkColor shadowColor)
 {
     m_shadowColor = shadowColor;
     shadowParameterChanged();
 }
 
-void CanvasRenderingContext2DState::setFilter(PassRefPtrWillBeRawPtr<CSSValue> filterValue)
+void CanvasRenderingContext2DState::setFilter(CSSValue filterValue)
 {
     m_filterValue = filterValue;
     m_resolvedFilter.clear();
 }
 
 void CanvasRenderingContext2DState::setGlobalComposite(SkXfermode::Mode mode)
 {
     m_strokePaint.setXfermodeMode(mode);
     m_fillPaint.setXfermodeMode(mode);
     m_imagePaint.setXfermodeMode(mode);
@@ skipping 75 matching lines @@
         paint->setLooper(0);
         paint->setImageFilter(shadowAndForegroundImageFilter());
         return paint;
     }
     paint->setLooper(shadowAndForegroundDrawLooper());
     paint->setImageFilter(0);
     return paint;
 }
 
 } // blink