Change onCameraOpening to take camera name as a parameter instead of camera id.

webrtc/api/android/java/src/org/webrtc/Camera2Session.java

Index: webrtc/api/android/java/src/org/webrtc/Camera2Session.java
diff --git a/webrtc/api/android/java/src/org/webrtc/Camera2Session.java b/webrtc/api/android/java/src/org/webrtc/Camera2Session.java
index f03bcaaed3e05c994049414dd8f6eeab7ae34b68..a10ce8f5389422d5d2434465db5529130e2defb8 100644
--- a/webrtc/api/android/java/src/org/webrtc/Camera2Session.java
+++ b/webrtc/api/android/java/src/org/webrtc/Camera2Session.java
@@ -316,13 +316,7 @@ public class Camera2Session implements CameraSession {
     checkIsOnCameraThread();
 
     Logging.d(TAG, "Opening camera " + cameraId);
-    int cameraIndex = -1;
-    try {
-      cameraIndex = Integer.parseInt(cameraId);
-    } catch (NumberFormatException e) {
-      Logging.d(TAG, "External camera with non-int identifier: " + cameraId);
-    }
-    eventsHandler.onCameraOpening(cameraIndex);
+    eventsHandler.onCameraOpening(cameraId);
 
     try {
       cameraManager.openCamera(cameraId, new CameraStateCallback(), cameraThreadHandler);