diff --git a/talk/app/webrtc/statstypes.cc b/talk/app/webrtc/statstypes.cc
index 854752006..0e67e700e 100644
--- a/talk/app/webrtc/statstypes.cc
+++ b/talk/app/webrtc/statstypes.cc
@@ -53,6 +53,11 @@ StatsReport::StatsReport(const std::string& id)
     : id(id), timestamp(0) {
 }
 
+StatsReport::StatsReport(const std::string& id,
+                         const StatsReport::StatsType& type)
+    : id(id), type(type), timestamp(0) {
+}
+
 StatsReport& StatsReport::operator=(const StatsReport& src) {
   ASSERT(id == src.id);
   type = src.type;
diff --git a/talk/app/webrtc/statstypes.h b/talk/app/webrtc/statstypes.h
index d47dc1853..732396cd1 100644
--- a/talk/app/webrtc/statstypes.h
+++ b/talk/app/webrtc/statstypes.h
@@ -44,9 +44,8 @@ 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): Change this to be an enum.
+  typedef std::string StatsType;
 
   // TODO(tommi): Make protected and disallow copy completely once not needed.
   StatsReport(const StatsReport& src);
@@ -54,6 +53,7 @@ class StatsReport {
   // Constructor is protected to force use of StatsSet.
   // TODO(tommi): Make this ctor protected.
   explicit StatsReport(const std::string& id);
+  StatsReport(const std::string& id, const StatsType& type);
 
   // TODO(tommi): Make this protected.
   StatsReport& operator=(const StatsReport& src);
@@ -70,7 +70,7 @@ class StatsReport {
   // so it must never be changed.
   // TODO(tommi): Make this member variable const.
   std::string id;  // See below for contents.
-  std::string type;  // See below for contents.
+  StatsType type;  // See below for contents.
 
   // StatsValue names.
   enum StatsValueName {