ui: Use skia::RefPtr<T> for implicit safe reference counting.

ui/views/controls/menu/menu_image_util.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/controls/menu/menu_image_util.h"
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "grit/ui_resources.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
@@ skipping 33 matching lines @@
 
   virtual void Draw(gfx::Canvas* canvas) OVERRIDE {
     canvas->Translate(gfx::Vector2d(1, 1));
 
     SkPoint gradient_points[3];
     gradient_points[0].iset(0, 0);
     gradient_points[1].iset(0,
                             static_cast<int>(kIndicatorSize * kGradientStop));
     gradient_points[2].iset(0, kIndicatorSize);
     SkColor gradient_colors[3] = { kGradient0, kGradient1, kGradient2 };
-    SkShader* shader = SkGradientShader::CreateLinear(
-        gradient_points, gradient_colors, NULL, arraysize(gradient_points),
-        SkShader::kClamp_TileMode, NULL);
+    skia::RefPtr<SkShader> shader = skia::AdoptRef(
+        SkGradientShader::CreateLinear(
+            gradient_points, gradient_colors, NULL, arraysize(gradient_points),
+            SkShader::kClamp_TileMode, NULL));
     SkPaint paint;
     paint.setStyle(SkPaint::kFill_Style);
     paint.setAntiAlias(true);
-    paint.setShader(shader);
-    shader->unref();
+    paint.setShader(shader.get());
     int radius = kIndicatorSize / 2;
     canvas->sk_canvas()->drawCircle(radius, radius, radius, paint);
     paint.setStrokeWidth(SkIntToScalar(0));
     paint.setShader(NULL);
     paint.setStyle(SkPaint::kStroke_Style);
     paint.setColor(kBaseStroke);
     canvas->sk_canvas()->drawCircle(radius, radius, radius, paint);
 
     if (selected_) {
       SkPoint selected_gradient_points[2];
       selected_gradient_points[0].iset(0, 0);
       selected_gradient_points[1].iset(0, kSelectedIndicatorSize);
       SkColor selected_gradient_colors[2] = { kRadioButtonIndicatorGradient0,
                                               kRadioButtonIndicatorGradient1 };
-      shader = SkGradientShader::CreateLinear(
-          selected_gradient_points, selected_gradient_colors, NULL,
-          arraysize(selected_gradient_points), SkShader::kClamp_TileMode, NULL);
-      paint.setShader(shader);
-      shader->unref();
+      shader = skia::AdoptRef(
+          SkGradientShader::CreateLinear(
+              selected_gradient_points, selected_gradient_colors, NULL,
+              arraysize(selected_gradient_points),
+              SkShader::kClamp_TileMode, NULL));
+      paint.setShader(shader.get());
       paint.setStyle(SkPaint::kFill_Style);
       canvas->sk_canvas()->drawCircle(radius, radius,
                                       kSelectedIndicatorSize / 2, paint);
 
       paint.setStrokeWidth(SkIntToScalar(0));
       paint.setShader(NULL);
       paint.setStyle(SkPaint::kStroke_Style);
       paint.setColor(kIndicatorStroke);
       canvas->sk_canvas()->drawCircle(radius, radius,
                                       kSelectedIndicatorSize / 2, paint);
@@ skipping 54 matching lines @@
   return selected ? kRadioOn : kRadioOff;
 }
 
 const gfx::ImageSkia* GetSubmenuArrowImage() {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   return base::i18n::IsRTL() ? GetRtlSubmenuArrowImage()
                              : rb.GetImageNamed(IDR_MENU_ARROW).ToImageSkia();
 }
 
 }  // namespace views