Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/api/declarative/declarative_manifest_data.h

 // 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.
 
 #ifndef EXTENSIONS_COMMON_API_DECLARATIVE_DECLARATIVE_MANIFEST_DATA_H_
 #define EXTENSIONS_COMMON_API_DECLARATIVE_DECLARATIVE_MANIFEST_DATA_H_
 
 #include <vector>
 
 #include "base/macros.h"
@@ skipping 12 matching lines @@
 
   DeclarativeManifestData();
   ~DeclarativeManifestData() override;
 
   // Gets the DeclarativeManifestData for |extension|, or NULL if none was
   // specified.
   static DeclarativeManifestData* Get(const Extension* extension);
 
   // Tries to construct the info based on |value|, as it would have appeared in
   // the manifest. Sets |error| and returns an empty scoped_ptr on failure.
-  static scoped_ptr<DeclarativeManifestData> FromValue(const base::Value& value,
-                                                       base::string16* error);
+  static std::unique_ptr<DeclarativeManifestData> FromValue(
+      const base::Value& value,
+      base::string16* error);
 
   std::vector<linked_ptr<DeclarativeManifestData::Rule>>& RulesForEvent(
       const std::string& event);
 
  private:
   std::map<std::string, std::vector<linked_ptr<Rule>>> event_rules_map_;
   DISALLOW_COPY_AND_ASSIGN(DeclarativeManifestData);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_API_DECLARATIVE_DECLARATIVE_MANIFEST_DATA_H_