Drop WebCoreInterpolationQualityToSkFilterQuality

Source/platform/graphics/GraphicsContextState.cpp

 // Copyright (c) 2014 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 "platform/graphics/GraphicsContextState.h"
 
 namespace blink {
 
+static inline SkFilterQuality filterQualityForPaint(InterpolationQuality quality)
+{
+    // The filter quality "selected" here will primarily be used when painting a
+    // primitive using one of the SkPaints below. For the most part this will
+    // not affect things that are part of the Image class hierarchy (which use
+    // the unmodified m_interpolationQuality.)
+    return quality != InterpolationNone ? kLow_SkFilterQuality : kNone_SkFilterQuality;
+}
+
 GraphicsContextState::GraphicsContextState()
     : m_strokeColor(Color::black)
     , m_fillColor(Color::black)
     , m_textDrawingMode(TextModeFill)
     , m_interpolationQuality(InterpolationDefault)
     , m_saveCount(0)
     , m_shouldAntialias(true)
 {
     m_strokePaint.setStyle(SkPaint::kStroke_Style);
     m_strokePaint.setStrokeWidth(SkFloatToScalar(m_strokeData.thickness()));
     m_strokePaint.setColor(m_strokeColor.rgb());
     m_strokePaint.setStrokeCap(SkPaint::kDefault_Cap);
     m_strokePaint.setStrokeJoin(SkPaint::kDefault_Join);
     m_strokePaint.setStrokeMiter(SkFloatToScalar(m_strokeData.miterLimit()));
-    m_strokePaint.setFilterQuality(WebCoreInterpolationQualityToSkFilterQuality(m_interpolationQuality));
+    m_strokePaint.setFilterQuality(filterQualityForPaint(m_interpolationQuality));
     m_strokePaint.setAntiAlias(m_shouldAntialias);
     m_fillPaint.setColor(m_fillColor.rgb());
-    m_fillPaint.setFilterQuality(WebCoreInterpolationQualityToSkFilterQuality(m_interpolationQuality));
+    m_fillPaint.setFilterQuality(filterQualityForPaint(m_interpolationQuality));
     m_fillPaint.setAntiAlias(m_shouldAntialias);
 }
 
 GraphicsContextState::GraphicsContextState(const GraphicsContextState& other)
     : m_strokePaint(other.m_strokePaint)
     , m_fillPaint(other.m_fillPaint)
     , m_strokeData(other.m_strokeData)
     , m_strokeColor(other.m_strokeColor)
     , m_strokeGradient(other.m_strokeGradient)
     , m_fillColor(other.m_fillColor)
@@ skipping 110 matching lines @@
 void GraphicsContextState::setColorFilter(PassRefPtr<SkColorFilter> colorFilter)
 {
     m_colorFilter = colorFilter;
     m_strokePaint.setColorFilter(m_colorFilter.get());
     m_fillPaint.setColorFilter(m_colorFilter.get());
 }
 
 void GraphicsContextState::setInterpolationQuality(InterpolationQuality quality)
 {
     m_interpolationQuality = quality;
-    m_strokePaint.setFilterQuality(WebCoreInterpolationQualityToSkFilterQuality(quality));
-    m_fillPaint.setFilterQuality(WebCoreInterpolationQualityToSkFilterQuality(quality));
+    m_strokePaint.setFilterQuality(filterQualityForPaint(quality));
+    m_fillPaint.setFilterQuality(filterQualityForPaint(quality));
 }
 
 void GraphicsContextState::setShouldAntialias(bool shouldAntialias)
 {
     m_shouldAntialias = shouldAntialias;
     m_strokePaint.setAntiAlias(shouldAntialias);
     m_fillPaint.setAntiAlias(shouldAntialias);
 }
 
 } // namespace blink