Implement FeatureProvider for ExtensionAPI.

chrome/renderer/extensions/extension_dispatcher.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/extension_dispatcher.h"
 
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_piece.h"
@@ skipping 525 matching lines @@
     case Feature::CONTENT_SCRIPT_CONTEXT: {
       module_system->Require("miscellaneous_bindings");
       module_system->Require("schema_generated_bindings");
       module_system->Require("apitest");
 
       // TODO(kalman): move this code back out of the switch and execute it
       // regardless of |context_type|. ExtensionAPI knows how to return the
       // correct APIs, however, until it doesn't have a 2MB overhead we can't
       // load it in every process.
       scoped_ptr<std::set<std::string> > apis =
-        ExtensionAPI::GetInstance()->GetAPIsForContext(
+        ExtensionAPI::GetSharedInstance()->GetAPIsForContext(
             context_type, extension, url_info.url());
       for (std::set<std::string>::iterator i = apis->begin(); i != apis->end();
           ++i) {
         InstallBindings(module_system.get(), v8_context, *i);
       }
 
       break;
     }
   }
 
@@ skipping 190 matching lines @@
     return Feature::BLESSED_EXTENSION_CONTEXT;
 
   if (extensions_.ExtensionBindingsAllowed(url_info))
     return Feature::UNBLESSED_EXTENSION_CONTEXT;
 
   if (url_info.url().is_valid())
     return Feature::WEB_PAGE_CONTEXT;
 
   return Feature::UNSPECIFIED_CONTEXT;
 }