chrome: Use skia::RefPtr for skia ref-counted objects.

chrome/browser/ui/views/tabs/tab.cc

Index: chrome/browser/ui/views/tabs/tab.cc
diff --git a/chrome/browser/ui/views/tabs/tab.cc b/chrome/browser/ui/views/tabs/tab.cc
index ae4010cecea5e14251798f0b4b8d97823095e794..1580d1064727b96c80b2203f9a3d5de0680e9bcc 100644
--- a/chrome/browser/ui/views/tabs/tab.cc
+++ b/chrome/browser/ui/views/tabs/tab.cc
@@ -1108,11 +1108,12 @@ void Tab::PaintInactiveTabBackgroundWithTitleChange(gfx::Canvas* canvas) {
   center_point.iset(x, 0);
   SkColor colors[2] = { kMiniTitleChangeGradientColor1,
                         kMiniTitleChangeGradientColor2 };
-  SkShader* shader = SkGradientShader::CreateRadial(center_point,
-      SkIntToScalar(radius), colors, NULL, 2, SkShader::kClamp_TileMode);
+  skia::RefPtr<SkShader> shader = skia::AdoptRef(
+      SkGradientShader::CreateRadial(
+          center_point, SkIntToScalar(radius), colors, NULL, 2,
+          SkShader::kClamp_TileMode));
   SkPaint paint;
-  paint.setShader(shader);
-  shader->unref();
+  paint.setShader(shader.get());
   hover_canvas.DrawRect(gfx::Rect(x - radius, -radius, radius * 2, radius * 2),
                         paint);