Verify that we don't receive a NULL pointer for the session_id. This check wi...

ceee/ie/common/chrome_frame_host.cc

Index: ceee/ie/common/chrome_frame_host.cc
===================================================================
--- ceee/ie/common/chrome_frame_host.cc	(revision 64914)
+++ ceee/ie/common/chrome_frame_host.cc	(working copy)
@@ -171,8 +171,12 @@
     if (chrome_frame_internal_) {
       return chrome_frame_internal_->getSessionId(session_id);
     } else {
-      *session_id = kInvalidChromeSessionId;
-      return S_OK;
+      // This whole else should be removed when getSessionId gets committed to
+      // ChromeFrame.
+      if (session_id != NULL) {
+        *session_id = kInvalidChromeSessionId;
+        return S_OK;
+      }
     }
   }
   NOTREACHED();