Repairing callstats, fix scoping on this for screen obtainer callback,

stopping new stream in RTC

modules/RTC/RTC.js

@@ -159,10 +159,14 @@ var RTC = {
             this.rtcUtils = null;
         }
         // Remove all local streams on cleanup
-				while (this.localStreams.length > 0) {
-					var stream = this.localStreams[0];
-					this.stopMediaStream(stream.getOriginalStream());
+				while (this.localAudio.length > 0) {
+					this.stopMediaStream(this.localAudio[0]
+            .getOriginalStream());
 				}
+        while (this.localVideo.length > 0) {
+          this.stopMediaStream(this.localVideo[0]
+            .getOriginalStream());
+        }
         if (eventEmitter) {
             eventEmitter.removeAllListeners();
         }

modules/desktopsharing/ScreenObtainer.js

@@ -270,6 +270,7 @@ function obtainScreenFromExtension(streamCallback, failCallback) {
                 'Changes will take effect after next Chrome restart.');
         }
 
+        var _this = this;
         chrome.webstore.install(
             getWebStoreInstallUrl(),
             function (arg) {
@@ -281,7 +282,7 @@ function obtainScreenFromExtension(streamCallback, failCallback) {
                 }, 500);
             },
             function (arg) {
-                this.eventEmitter
+                _this.eventEmitter
                   .emit(DesktopSharingEventTypes.EXTENSION_INSTALLATION_ERROR);
                 console.log("Failed to install the extension", arg);
                 failCallback(arg);

modules/statistics/CallStats.js

@@ -31,6 +31,8 @@ var callStatsIntegrationEnabled = config.callStatsID && config.callStatsSecret;
 
 var CallStats = {
     init: function (jingleSession) {
+        callStatsIntegrationEnabled = config.callStatsID
+          && config.callStatsSecret;
         if(!callStatsIntegrationEnabled || callStats !== null) {
             return;
         }