Lazy load chrome.* APIs

chrome/common/extensions/features/feature.h

Index: chrome/common/extensions/features/feature.h
diff --git a/chrome/common/extensions/features/feature.h b/chrome/common/extensions/features/feature.h
index e3964b1e28fe6c73b1f8a3040f56f2e851c61c60..6eaa3a3b4f2106e6e74934a01a6c203b66946d06 100644
--- a/chrome/common/extensions/features/feature.h
+++ b/chrome/common/extensions/features/feature.h
@@ -75,6 +75,7 @@ class Feature {
 
    private:
     friend class SimpleFeature;
+    friend class Feature;
 
     // Instances should be created via Feature::CreateAvailability.
     Availability(AvailabilityResult result, const std::string& message)
@@ -86,6 +87,10 @@ class Feature {
 
   virtual ~Feature();
 
+  // Used by ChromeV8Context until the feature system is fully functional.
+  static Availability CreateAvailability(AvailabilityResult result,
+                                         const std::string& message);
+
   // Gets the current channel as seen by the Feature system.
   static chrome::VersionInfo::Channel GetCurrentChannel();