cc: Move SkShader construction to a single spot in PaintShader

ui/views/painter.cc

 // Copyright (c) 2012 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 "ui/views/painter.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 193 matching lines @@
 
 void GradientPainter::Paint(gfx::Canvas* canvas, const gfx::Size& size) {
   cc::PaintFlags flags;
   SkPoint p[2];
   p[0].iset(0, 0);
   if (horizontal_)
     p[1].iset(size.width(), 0);
   else
     p[1].iset(0, size.height());
 
-  flags.setShader(cc::WrapSkShader(SkGradientShader::MakeLinear(
-      p, colors_.get(), pos_.get(), count_, SkShader::kClamp_TileMode)));
+  flags.setShader(base::MakeUnique<cc::PaintShader>(
+      p, colors_.get(), pos_.get(), count_, SkShader::kClamp_TileMode));
   flags.setStyle(cc::PaintFlags::kFill_Style);
 
   canvas->sk_canvas()->drawRect(SkRect::MakeIWH(size.width(), size.height()),
                                 flags);
 }
 
 // ImagePainter ---------------------------------------------------------------
 
 // ImagePainter stores and paints nine images as a scalable grid.
 class ImagePainter : public Painter {
@@ skipping 164 matching lines @@
   canvas->DrawImageInt(*images_[LEFT], 0, 0);
   canvas->DrawImageInt(*images_[RIGHT], size.width() - images_[RIGHT]->width(),
                        0);
   canvas->TileImageInt(
       *images_[CENTER], images_[LEFT]->width(), 0,
       size.width() - images_[LEFT]->width() - images_[RIGHT]->width(),
       images_[LEFT]->height());
 }
 
 }  // namespace views