diff --git a/talk/app/webrtc/statstypes.h b/talk/app/webrtc/statstypes.h
index 34a6cc1603..f2a23d04fc 100644
--- a/talk/app/webrtc/statstypes.h
+++ b/talk/app/webrtc/statstypes.h
@@ -44,6 +44,10 @@ namespace webrtc {
 
 class StatsReport {
  public:
+  // TODO(tommi): Remove this ctor after removing reliance upon it in Chromium
+  // (mock_peer_connection_impl.cc).
+  StatsReport() : timestamp(0) {}
+
   // TODO(tommi): Make protected and disallow copy completely once not needed.
   StatsReport(const StatsReport& src);