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

cc/output/filter_operation.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 <stddef.h>
 
 #include <algorithm>
 
 #include "base/trace_event/trace_event_argument.h"
 #include "base/values.h"
@@ skipping 285 matching lines @@
         can_filter_image_gpu = image_filter_->canFilterImageGPU();
       }
       value->SetBoolean("is_null", !image_filter_);
       value->SetInteger("count_inputs", count_inputs);
       value->SetBoolean("can_filter_image_gpu", can_filter_image_gpu);
       break;
     }
     case FilterOperation::ALPHA_THRESHOLD: {
         value->SetDouble("inner_threshold", amount_);
         value->SetDouble("outer_threshold", outer_threshold_);
-        scoped_ptr<base::ListValue> region_value(new base::ListValue());
+        std::unique_ptr<base::ListValue> region_value(new base::ListValue());
         value->BeginArray("region");
         for (SkRegion::Iterator it(region_); !it.done(); it.next()) {
           value->AppendInteger(it.rect().x());
           value->AppendInteger(it.rect().y());
           value->AppendInteger(it.rect().width());
           value->AppendInteger(it.rect().height());
         }
         value->EndArray();
       }
       break;
   }
 }
 
 }  // namespace cc