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

cc/playback/clip_path_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/clip_path_display_item.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/strings/stringprintf.h"
@@ skipping 44 matching lines @@
     ImageSerializationProcessor* image_serialization_processor) const {
   proto->set_type(proto::DisplayItem::Type_ClipPath);
 
   proto::ClipPathDisplayItem* details = proto->mutable_clip_path_item();
   details->set_clip_op(SkRegionOpToProto(clip_op_));
   details->set_antialias(antialias_);
 
   // Just use skia's serialization method for the SkPath for now.
   size_t path_size = clip_path_.writeToMemory(nullptr);
   if (path_size > 0) {
-    scoped_ptr<uint8_t[]> buffer(new uint8_t[path_size]);
+    std::unique_ptr<uint8_t[]> buffer(new uint8_t[path_size]);
     clip_path_.writeToMemory(buffer.get());
     details->set_clip_path(buffer.get(), path_size);
   }
 }
 
 void ClipPathDisplayItem::Raster(SkCanvas* canvas,
                                  const gfx::Rect& canvas_target_playback_rect,
                                  SkPicture::AbortCallback* callback) const {
   canvas->save();
   canvas->clipPath(clip_path_, clip_op_, antialias_);
@@ skipping 42 matching lines @@
   array->AppendString(
       base::StringPrintf("EndClipPathDisplayItem visualRect: [%s]",
                          visual_rect.ToString().c_str()));
 }
 
 size_t EndClipPathDisplayItem::ExternalMemoryUsage() const {
   return 0;
 }
 
 }  // namespace cc