Generates the DTLS identity in browser process and returns it to render process.

content/browser/renderer_host/render_process_host_impl.h

Index: content/browser/renderer_host/render_process_host_impl.h
diff --git a/content/browser/renderer_host/render_process_host_impl.h b/content/browser/renderer_host/render_process_host_impl.h
index dff4959945281cd709f4a3fa39d3c055dd6f02f1..bc1be233592cf649f3942bab856b2fdd2a098a13 100644
--- a/content/browser/renderer_host/render_process_host_impl.h
+++ b/content/browser/renderer_host/render_process_host_impl.h
@@ -31,6 +31,7 @@ class Size;
 }
 
 namespace content {
+class DTLSIdentityServiceHost;
 class GpuMessageFilter;
 class PeerConnectionTrackerHost;
 class RendererMainThread;
@@ -323,10 +324,16 @@ class CONTENT_EXPORT RenderProcessHostImpl
   // renderer.
   bool is_guest_;
 
+#if defined(ENABLE_WEBRTC)
   // Forwards messages between WebRTCInternals in the browser process
   // and PeerConnectionTracker in the renderer process.
   scoped_refptr<PeerConnectionTrackerHost> peer_connection_tracker_host_;
 
+  // Forwards DTLS identity requests from renderer process to the
+  // DTLSIdentityStore singleton.
+  scoped_refptr<DTLSIdentityServiceHost> dtls_identity_service_host_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };