Implement FeatureProvider for ExtensionAPI.

chrome/renderer/extensions/v8_schema_registry.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/renderer/extensions/v8_schema_registry.h"
 
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/common/extensions/api/extension_api.h"
 #include "content/public/renderer/v8_value_converter.h"
@@ skipping 23 matching lines @@
   }
   return v8_apis;
 }
 
 v8::Handle<v8::Object> V8SchemaRegistry::GetSchema(const std::string& api) {
   SchemaCache::iterator maybe_schema = schema_cache_.find(api);
   if (maybe_schema != schema_cache_.end())
     return maybe_schema->second;
 
   const base::DictionaryValue* schema =
-      ExtensionAPI::GetInstance()->GetSchema(api);
+      ExtensionAPI::GetSharedInstance()->GetSchema(api);
   CHECK(schema) << api;
 
   scoped_ptr<V8ValueConverter> v8_value_converter(V8ValueConverter::create());
   v8::Persistent<v8::Object> v8_schema =
       v8::Persistent<v8::Object>::New(v8::Handle<v8::Object>::Cast(
           v8_value_converter->ToV8Value(schema, context_)));
   CHECK(!v8_schema.IsEmpty());
   schema_cache_[api] = v8_schema;
   return v8_schema;
 }
 
 }  // namespace extensions