Small bug in PPAPI graphics_2_example

BUG=


Review URL: https://chromiumcodereview.appspot.com/10832359

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@152237 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/examples/2d/graphics_2d_example.c

@@ -104,6 +104,7 @@ struct InstanceInfo* FindInstance(PP_Instance instance) {
   while (cur) {
     if (cur->pp_instance == instance)
       return cur;
+    cur = cur->next;
   }
   return NULL;
 }