Refactor SkiaImageFilterBuilder into a namespace.

third_party/WebKit/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 "modules/canvas2d/CanvasRenderingContext2DState.h"
 
 #include "core/css/CSSFontSelector.h"
 #include "core/css/resolver/FilterOperationResolver.h"
 #include "core/css/resolver/StyleBuilder.h"
 #include "core/css/resolver/StyleResolverState.h"
@@ skipping 299 matching lines @@
         SkPaint fillPaintForFilter;
         SkPaint strokePaintForFilter;
         m_fillStyle->applyToPaint(fillPaintForFilter);
         m_strokeStyle->applyToPaint(strokePaintForFilter);
         fillPaintForFilter.setColor(m_fillStyle->paintColor());
         strokePaintForFilter.setColor(m_strokeStyle->paintColor());
         FloatSize floatCanvasSize(canvasSize);
         const double effectiveZoom = 1.0; // Deliberately ignore zoom on the canvas element
         filterEffectBuilder->build(styleResolutionHost, filterStyle->filter(), effectiveZoom, &floatCanvasSize, &fillPaintForFilter, &strokePaintForFilter);
 
-        SkiaImageFilterBuilder imageFilterBuilder;
         FilterEffect* lastEffect = filterEffectBuilder->lastEffect();
         if (lastEffect) {
             lastEffect->determineFilterPrimitiveSubregion();
         }
-        m_resolvedFilter = imageFilterBuilder.build(lastEffect, ColorSpaceDeviceRGB);
+        m_resolvedFilter = SkiaImageFilterBuilder::build(lastEffect, ColorSpaceDeviceRGB);
         if (m_resolvedFilter) {
             updateFilterReferences(toHTMLCanvasElement(styleResolutionHost), context, filterStyle->filter());
             if (lastEffect->originTainted())
                 context->setOriginTainted();
         }
     }
 
     return m_resolvedFilter.get();
 }
 
@@ skipping 222 matching lines @@
         paint->setLooper(0);
         paint->setImageFilter(shadowAndForegroundImageFilter());
         return paint;
     }
     paint->setLooper(sk_ref_sp(shadowAndForegroundDrawLooper()));
     paint->setImageFilter(0);
     return paint;
 }
 
 } // namespace blink