Move core features code to //extensions

extensions/common/features/base_feature_provider.h

 // 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.
 
-#ifndef CHROME_COMMON_EXTENSIONS_FEATURES_BASE_FEATURE_PROVIDER_H_
-#define CHROME_COMMON_EXTENSIONS_FEATURES_BASE_FEATURE_PROVIDER_H_
+#ifndef EXTENSIONS_COMMON_FEATURES_BASE_FEATURE_PROVIDER_H_
+#define EXTENSIONS_COMMON_FEATURES_BASE_FEATURE_PROVIDER_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/memory/linked_ptr.h"
 #include "base/values.h"
-#include "chrome/common/extensions/features/simple_feature.h"
 #include "extensions/common/features/feature_provider.h"
+#include "extensions/common/features/simple_feature.h"
 
 namespace extensions {
 
 // Reads Features out of a simple JSON file description.
 class BaseFeatureProvider : public FeatureProvider {
  public:
   typedef SimpleFeature*(*FeatureFactory)();
 
   // Creates a new BaseFeatureProvider. Pass null to |factory| to have the
   // provider create plain old Feature instances.
@@ skipping 17 matching lines @@
   FeatureMap features_;
 
   // Populated on first use.
   mutable std::vector<std::string> feature_names_;
 
   FeatureFactory factory_;
 };
 
 }  // namespace extensions
 
-#endif  // CHROME_COMMON_EXTENSIONS_FEATURES_BASE_FEATURE_PROVIDER_H_
+#endif  // EXTENSIONS_COMMON_FEATURES_BASE_FEATURE_PROVIDER_H_