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

extensions/common/manifest_handlers/requirements_info.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_MANIFEST_HANDLERS_REQUIREMENTS_INFO_H_
 #define EXTENSIONS_COMMON_MANIFEST_HANDLERS_REQUIREMENTS_INFO_H_
 
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_handler.h"
 
 namespace extensions {
 
 // Declared requirements for the extension.
 struct RequirementsInfo : public Extension::ManifestData {
   explicit RequirementsInfo(const Manifest* manifest);
   ~RequirementsInfo() override;
@@ skipping 19 matching lines @@
 
  private:
   const std::vector<std::string> Keys() const override;
 
   DISALLOW_COPY_AND_ASSIGN(RequirementsHandler);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_MANIFEST_HANDLERS_REQUIREMENTS_INFO_H_