Lazily load extension API schemas

chrome/common/extensions/features/complex_feature.cc

 // 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.
 
 #include "chrome/common/extensions/features/complex_feature.h"
 
 #include "chrome/common/extensions/features/simple_feature.h"
 
 namespace extensions {
 
@@ skipping 20 matching lines @@
         extension_id, type, location, manifest_version, platform);
     if (availability.is_available())
       return availability;
   }
   // If none of the SimpleFeatures are available, we return the availability
   // info of the first SimpleFeature that was not available.
   return first_availability;
 }
 
 Feature::Availability ComplexFeature::IsAvailableToContext(
-    const Extension* extension, Context context, Platform platform) const {
+    const Extension* extension,
+    Context context,
+    const GURL& url,
+    Platform platform) const {
   Feature::Availability first_availability =
-      features_[0]->IsAvailableToContext(extension, context, platform);
+      features_[0]->IsAvailableToContext(extension, context, url, platform);
   if (first_availability.is_available())
     return first_availability;
 
   for (FeatureList::const_iterator it = features_.begin() + 1;
        it != features_.end(); ++it) {
     Availability availability =
-        (*it)->IsAvailableToContext(extension, context, platform);
+        (*it)->IsAvailableToContext(extension, context, url, platform);
     if (availability.is_available())
       return availability;
   }
   // If none of the SimpleFeatures are available, we return the availability
   // info of the first SimpleFeature that was not available.
   return first_availability;
 }
 
 std::set<Feature::Context>* ComplexFeature::GetContexts() {
   // TODO(justinlin): Current use cases for ComplexFeatures are simple (e.g.
   // allow API in dev channel for everyone but stable channel for a whitelist),
   // but if they get more complicated, we need to return some meaningful context
   // set. Either that or remove this method from the Feature interface.
   return features_[0]->GetContexts();
 }
 
 std::string ComplexFeature::GetAvailabilityMessage(AvailabilityResult result,
                                                    Manifest::Type type) const {
   if (result == IS_AVAILABLE)
     return "";
 
   // TODO(justinlin): Form some kind of combined availabilities/messages from
   // SimpleFeatures.
   return features_[0]->GetAvailabilityMessage(result, type);
 }
 
 }  // namespace extensions