Add 'web_accessible_resource" keyword for version 2 extension manifests. This makes extension res...

chrome/renderer/extensions/extension_resource_request_policy.cc

Index: chrome/renderer/extensions/extension_resource_request_policy.cc
===================================================================
--- chrome/renderer/extensions/extension_resource_request_policy.cc	(revision 113054)
+++ chrome/renderer/extensions/extension_resource_request_policy.cc	(working copy)
@@ -38,6 +38,15 @@
     return false;
   }
 
+  // Disallow loading of extension resources which are not explicitely listed
+  // as web accessible if the manifest version is 2 or greater.
+  if (extension->manifest_version() >= 2 &&
+       !extension->CanWebAccessResource(resource_url.path())) {
+    LOG(ERROR) << "Denying load of " << resource_url.spec() << " which "
+               << "is not a web accessible resource.";
+    return false;
+  }
+
   return true;
 }