Split feature definitions into extensions and chrome features.

chrome/common/extensions/chrome_extensions_client.h

Index: chrome/common/extensions/chrome_extensions_client.h
diff --git a/chrome/common/extensions/chrome_extensions_client.h b/chrome/common/extensions/chrome_extensions_client.h
index 49f3564fbe33236bb28353eca2903c467f3f05c7..d11c26f30905f24901713a370846a379e8128bb8 100644
--- a/chrome/common/extensions/chrome_extensions_client.h
+++ b/chrome/common/extensions/chrome_extensions_client.h
@@ -26,8 +26,8 @@ class ChromeExtensionsClient : public ExtensionsClient {
   virtual const PermissionsProvider& GetPermissionsProvider() const OVERRIDE;
   virtual const PermissionMessageProvider& GetPermissionMessageProvider() const
       OVERRIDE;
-  virtual FeatureProvider* GetFeatureProviderByName(const std::string& name)
-      const OVERRIDE;
+  virtual scoped_ptr<FeatureProvider> CreateFeatureProvider(
+      const std::string& name) const OVERRIDE;
   virtual void FilterHostPermissions(
       const URLPatternSet& hosts,
       URLPatternSet* new_hosts,
@@ -43,7 +43,6 @@ class ChromeExtensionsClient : public ExtensionsClient {
   virtual bool IsAPISchemaGenerated(const std::string& name) const OVERRIDE;
   virtual base::StringPiece GetAPISchema(const std::string& name) const
       OVERRIDE;
-  virtual void AddExtraFeatureFilters(SimpleFeature* feature) const OVERRIDE;
   virtual bool ShouldSuppressFatalErrors() const OVERRIDE;
 
   // Get the LazyInstance for ChromeExtensionsClient.