Include the session id in feedback logs.

remoting/webapp/base/js/client_session.js

Index: remoting/webapp/base/js/client_session.js
diff --git a/remoting/webapp/base/js/client_session.js b/remoting/webapp/base/js/client_session.js
index db13e65fa54a9ad382909f79cfab4103d5de8436..904ad1923f4c6012995c52576f6f91df3772d3b9 100644
--- a/remoting/webapp/base/js/client_session.js
+++ b/remoting/webapp/base/js/client_session.js
@@ -329,6 +329,14 @@ remoting.ClientSession.prototype.getError = function() {
 };
 
 /**
+ * @return {string} The current log session id (distinct from the jingle session
+*      id). This is random GUID, refreshed every 24hrs.
+ */
+ remoting.ClientSession.prototype.getLogSessionId = function() {
+  return this.logToServer_.getSessionId();
+};
+
+/**
  * Called when the client receives its first frame.
  *
  * @return {void} Nothing.
@@ -604,4 +612,3 @@ remoting.ClientSession.prototype.reportStatistics = function() {
 remoting.ClientSession.prototype.logHostOfflineErrors = function(enable) {
   this.logHostOfflineErrors_ = enable;
 };
-