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

cc/base/region.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 "cc/base/region.h"
 
 #include <stddef.h>
 
 #include "base/trace_event/trace_event_argument.h"
 #include "base/values.h"
@@ skipping 102 matching lines @@
 
   std::string result;
   for (Iterator it(*this); it.has_rect(); it.next()) {
     if (!result.empty())
       result += " | ";
     result += it.rect().ToString();
   }
   return result;
 }
 
-scoped_ptr<base::Value> Region::AsValue() const {
-  scoped_ptr<base::ListValue> result(new base::ListValue());
+std::unique_ptr<base::Value> Region::AsValue() const {
+  std::unique_ptr<base::ListValue> result(new base::ListValue());
   for (Iterator it(*this); it.has_rect(); it.next()) {
     gfx::Rect rect(it.rect());
     result->AppendInteger(rect.x());
     result->AppendInteger(rect.y());
     result->AppendInteger(rect.width());
     result->AppendInteger(rect.height());
   }
   return std::move(result);
 }
 
@@ skipping 11 matching lines @@
 }
 
 Region::Iterator::Iterator(const Region& region)
     : it_(region.skregion_) {
 }
 
 Region::Iterator::~Iterator() {
 }
 
 }  // namespace cc