Lazily load API schemas from resource files and convert all APIs to features

chrome/common/extensions/features/feature_provider.h

Index: chrome/common/extensions/features/feature_provider.h
diff --git a/chrome/common/extensions/features/feature_provider.h b/chrome/common/extensions/features/feature_provider.h
index 8a211c909f2a9ca6ae15ad3d490a69bbb9d9e7ec..56942d5a303fe133643ee3cd0f51417010005e13 100644
--- a/chrome/common/extensions/features/feature_provider.h
+++ b/chrome/common/extensions/features/feature_provider.h
@@ -20,8 +20,11 @@ class FeatureProvider {
   // Returns the feature with the specified name.
   virtual Feature* GetFeature(const std::string& name) = 0;
 
+  // Returns the parent feature of |feature|, or NULL if there isn't one.
+  virtual Feature* GetParent(Feature* feature) = 0;
+
   // Returns all features described by this instance.
-  virtual std::set<std::string> GetAllFeatureNames() = 0;
+  virtual const std::vector<std::string>& GetAllFeatureNames() = 0;
 };
 
 }  // namespace extensions