Stop passing raw pointers to DictionaryValue::Set, part 1

cc/layers/ui_resource_layer_impl.cc

 // Copyright 2013 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 "cc/layers/ui_resource_layer_impl.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "cc/base/math_util.h"
 #include "cc/quads/texture_draw_quad.h"
@@ skipping 125 matching lines @@
   ValidateQuadResources(quad);
 }
 
 const char* UIResourceLayerImpl::LayerTypeAsString() const {
   return "cc::UIResourceLayerImpl";
 }
 
 std::unique_ptr<base::DictionaryValue> UIResourceLayerImpl::LayerTreeAsJson() {
   std::unique_ptr<base::DictionaryValue> result = LayerImpl::LayerTreeAsJson();
 
-  result->Set("ImageBounds", MathUtil::AsValue(image_bounds_).release());
+  result->Set("ImageBounds", MathUtil::AsValue(image_bounds_));
 
-  base::ListValue* list = new base::ListValue;
+  auto list = base::MakeUnique<base::ListValue>();
   list->AppendDouble(vertex_opacity_[0]);
   list->AppendDouble(vertex_opacity_[1]);
   list->AppendDouble(vertex_opacity_[2]);
   list->AppendDouble(vertex_opacity_[3]);
-  result->Set("VertexOpacity", list);
+  result->Set("VertexOpacity", std::move(list));
 
-  result->Set("UVTopLeft", MathUtil::AsValue(uv_top_left_).release());
-  result->Set("UVBottomRight", MathUtil::AsValue(uv_bottom_right_).release());
+  result->Set("UVTopLeft", MathUtil::AsValue(uv_top_left_));
+  result->Set("UVBottomRight", MathUtil::AsValue(uv_bottom_right_));
 
   return result;
 }
 
 }  // namespace cc