Cast: Add JS API to get raw events logs from cast extension.

chrome/test/data/extensions/api_test/cast_streaming/bad_logging.js

Index: chrome/test/data/extensions/api_test/cast_streaming/bad_logging.js
diff --git a/chrome/test/data/extensions/api_test/cast_streaming/basics.js b/chrome/test/data/extensions/api_test/cast_streaming/bad_logging.js
similarity index 74%
copy from chrome/test/data/extensions/api_test/cast_streaming/basics.js
copy to chrome/test/data/extensions/api_test/cast_streaming/bad_logging.js
index d6d0bf45aea6b08e8c7e9c2de1d4c93711464b15..3d36cfe9546a3e2816f64afedee06fc29175ff2a 100644
--- a/chrome/test/data/extensions/api_test/cast_streaming/basics.js
+++ b/chrome/test/data/extensions/api_test/cast_streaming/bad_logging.js
@@ -8,38 +8,10 @@ var udpTransport = chrome.cast.streaming.udpTransport;
 var createSession = chrome.cast.streaming.session.create;
 var pass = chrome.test.callbackPass;
 
-function TestStateMachine(stream, audioId, videoId, udpId) {
-  this.stream = stream;
-  this.audioId = audioId;
-  this.videoId = videoId;
-  this.udpId = udpId;
-  this.audioStarted = false;
-  this.videoStarted = false;
-  this.audioStopped = false;
-  this.videoStopped = false;
-}
-
-TestStateMachine.prototype.onStarted = function(id) {
-  if (id == this.audioId)
-    this.audioStarted = true;
-  if (id == this.videoId)
-    this.videoStarted = true;
-  if (this.audioStarted && this.videoStarted)
-    this.onAllStarted();
-}
-
-TestStateMachine.prototype.onStopped = function(id) {
-  if (id == this.audioId)
-    this.audioStopped = true;
-  if (id == this.videoId)
-    this.videoStopped = true;
-  if (this.audioStopped && this.videoStopped)
-    this.onAllStopped();
-}
-
 chrome.test.runTests([
-  function rtpStreamStart() {
-    console.log("[TEST] rtpStreamStart");
+  function emptyLogWithLoggingDisabled() {
+  
+    console.log("[TEST] emptyLogWithLoggingDisabled");
     tabCapture.capture({audio: true, video: true},
                        pass(function(stream) {
       console.log("Got MediaStream.");
@@ -54,6 +26,9 @@ chrome.test.runTests([
                                                 udpId);
         var audioParams = rtpStream.getSupportedParams(audioId)[0];
         var videoParams = rtpStream.getSupportedParams(videoId)[0];
+        var expectEmptyLogs = function(rawEvents) {
+          chrome.test.assertEq("", rawEvents);
+        }
         chrome.test.assertEq(audioParams.payload.codecName, "OPUS");
         chrome.test.assertEq(videoParams.payload.codecName, "VP8");
         udpTransport.setDestination(udpId,
@@ -62,6 +37,12 @@ chrome.test.runTests([
             stateMachine.onStarted.bind(stateMachine));
         stateMachine.onAllStarted =
             pass(function(audioId, videoId) {
+          console.log("Getting logs without enabling logging.");
+          rtpStream.getRawEvents(audioId, expectEmptyLogs);
+          rtpStream.getRawEvents(videoId, expectEmptyLogs);
+          console.log("Disabling logging that is already disabled.");
+          rtpStream.toggleLogging(audioId, false);
+          rtpStream.toggleLogging(videoId, false);
           console.log("Stopping.");
           rtpStream.stop(audioId);
           rtpStream.stop(videoId);