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

extensions/common/features/feature_provider.h

 // 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.
 
 #ifndef EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_
 #define EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_
 
 #include <map>
+#include <memory>
 #include <string>
 #include <vector>
 
-#include "base/memory/scoped_ptr.h"
 
 namespace extensions {
 
 class Feature;
 
-using FeatureMap = std::map<std::string, scoped_ptr<Feature>>;
+using FeatureMap = std::map<std::string, std::unique_ptr<Feature>>;
 
 // Implemented by classes that can vend features.
 class FeatureProvider {
  public:
   FeatureProvider() {}
   virtual ~FeatureProvider() {}
 
   //
   // Static helpers.
   //
@@ skipping 30 matching lines @@
   // Returns the features inside the |parent| namespace, recursively.
   virtual std::vector<Feature*> GetChildren(const Feature& parent) const = 0;
 
   // Returns a map containing all features described by this instance.
   virtual const FeatureMap& GetAllFeatures() const = 0;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_FEATURES_FEATURE_PROVIDER_H_