cc: Move SkShader construction to a single spot in PaintShader

content/browser/web_contents/aura/shadow_layer_delegate.cc

Index: content/browser/web_contents/aura/shadow_layer_delegate.cc
diff --git a/content/browser/web_contents/aura/shadow_layer_delegate.cc b/content/browser/web_contents/aura/shadow_layer_delegate.cc
index 84ef3f68ae0e3898d7ca58d94682ca6b730f8f49..2c1cc448f2e79714c5cd8659b693b9917b02734e 100644
--- a/content/browser/web_contents/aura/shadow_layer_delegate.cc
+++ b/content/browser/web_contents/aura/shadow_layer_delegate.cc
@@ -45,9 +45,9 @@ void ShadowLayerDelegate::OnPaintLayer(const ui::PaintContext& context) {
   gfx::Rect paint_rect = gfx::Rect(0, 0, kShadowThick,
                                    layer_->bounds().height());
   cc::PaintFlags flags;
-  flags.setShader(cc::WrapSkShader(SkGradientShader::MakeLinear(
-      points, kShadowColors, NULL, arraysize(points),
-      SkShader::kRepeat_TileMode)));
+  flags.setShader(base::MakeUnique<cc::PaintShader>(
+      points, kShadowColors, nullptr, arraysize(points),
+      SkShader::kRepeat_TileMode));
   ui::PaintRecorder recorder(context, layer_->size());
   recorder.canvas()->DrawRect(paint_rect, flags);
 }