Split Gradient impl into separate classes

third_party/WebKit/Source/core/paint/MediaControlsPainter.cpp

 /*
  * Copyright (C) 2009 Apple Inc.
  * Copyright (C) 2009 Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 236 matching lines @@
   highlightRect.setWidth(rangeWidth);
 
   // Don't bother drawing an empty area.
   if (highlightRect.isEmpty())
     return;
 
   // Calculate white-grey gradient.
   FloatPoint sliderTopLeft = highlightRect.location();
   FloatPoint sliderBottomLeft = sliderTopLeft;
   sliderBottomLeft.move(0, highlightRect.height());
-  RefPtr<Gradient> gradient = Gradient::create(sliderTopLeft, sliderBottomLeft);
+  RefPtr<Gradient> gradient =
+      Gradient::createLinear(sliderTopLeft, sliderBottomLeft);
   gradient->addColorStop(0.0, startColor);
   gradient->addColorStop(1.0, endColor);
 
   // Fill highlight rectangle with gradient, potentially rounded if on left or
   // right edge.
   PaintFlags gradientFlags(context.fillFlags());
   gradient->applyToFlags(gradientFlags, SkMatrix::I());
 
   if (startOffset < borderRadius && endOffset < borderRadius) {
     context.drawRRect(
@@ skipping 335 matching lines @@
 void MediaControlsPainter::adjustMediaSliderThumbSize(ComputedStyle& style) {
   const float zoomLevel = style.effectiveZoom();
 
   style.setWidth(
       Length(static_cast<int>(mediaSliderThumbTouchWidth * zoomLevel), Fixed));
   style.setHeight(
       Length(static_cast<int>(mediaSliderThumbTouchHeight * zoomLevel), Fixed));
 }
 
 }  // namespace blink