Fix redirecting to local AppRTC server in video quality test

webrtc/examples/androidtests/src/org/appspot/apprtc/test/CallActivityStubbedInputOutputTest.java

Index: webrtc/examples/androidtests/src/org/appspot/apprtc/test/CallActivityStubbedInputOutputTest.java
diff --git a/webrtc/examples/androidtests/src/org/appspot/apprtc/test/CallActivityStubbedInputOutputTest.java b/webrtc/examples/androidtests/src/org/appspot/apprtc/test/CallActivityStubbedInputOutputTest.java
index 2e3a239366936df1be8c239016b8fa962d3d0f80..a066037ec4a770be372da40f06b909755adb5ff2 100644
--- a/webrtc/examples/androidtests/src/org/appspot/apprtc/test/CallActivityStubbedInputOutputTest.java
+++ b/webrtc/examples/androidtests/src/org/appspot/apprtc/test/CallActivityStubbedInputOutputTest.java
@@ -59,7 +59,7 @@ public class CallActivityStubbedInputOutputTest {
       intent.putExtra(CallActivity.EXTRA_ROOMID, UUID.randomUUID().toString().substring(0, 8));
       // TODO false for wstls to disable https, should be option later or if URL is http
       intent.putExtra(CallActivity.EXTRA_URLPARAMETERS,
-          "wstls=false?debug=loopback?ts=?wshpp=http://localhost:8089");

[oprypin_webrtc, 2017/04/26 13:06:46]

In the previous CL I said that this worked fine with all '?' but failed with '&'
- that is indeed true. With '?' the arguments weren't actually acknowledged so
the fallback (online apprtc server) was used. But with '&' the incorrect
argument "http://localhost:8089" was sent, causing an error internally because
after some passing around the URL became "ws://http://localhost:8089".

+          "debug=loopback&ts=&wshpp=localhost:8089&wstls=false");
 
       intent.putExtra(CallActivity.EXTRA_VIDEO_FILE_AS_CAMERA,
           Environment.getExternalStorageDirectory().getAbsolutePath()