Convert //cc from scoped_ptr to std::unique_ptr.

cc/playback/compositing_display_item.cc

 // Copyright 2015 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/playback/compositing_display_item.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/strings/stringprintf.h"
@@ skipping 22 matching lines @@
          lcd_text_requires_opaque_layer);
 }
 
 CompositingDisplayItem::CompositingDisplayItem(
     const proto::DisplayItem& proto) {
   DCHECK_EQ(proto::DisplayItem::Type_Compositing, proto.type());
 
   const proto::CompositingDisplayItem& details = proto.compositing_item();
   uint8_t alpha = static_cast<uint8_t>(details.alpha());
   SkXfermode::Mode xfermode = SkXfermodeModeFromProto(details.mode());
-  scoped_ptr<SkRect> bounds;
+  std::unique_ptr<SkRect> bounds;
   if (details.has_bounds()) {
     bounds.reset(
         new SkRect(gfx::RectFToSkRect(ProtoToRectF(details.bounds()))));
   }
 
   sk_sp<SkColorFilter> filter;
   if (details.has_color_filter()) {
     SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
         details.color_filter().c_str(), details.color_filter().size(),
         SkColorFilter::GetFlattenableType());
@@ skipping 109 matching lines @@
   array->AppendString(
       base::StringPrintf("EndCompositingDisplayItem visualRect: [%s]",
                          visual_rect.ToString().c_str()));
 }
 
 size_t EndCompositingDisplayItem::ExternalMemoryUsage() const {
   return 0;
 }
 
 }  // namespace cc