CameraEnumerationAndroid: Make getSupportedFormats() an interface

talk/app/webrtc/java/android/org/webrtc/VideoCapturerAndroid.java

 /*
  * libjingle
  * Copyright 2015 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 202 matching lines @@
       return;
     }
     cameraThreadHandler.post(new Runnable() {
       @Override public void run() {
         startPreviewOnCameraThread(width, height, framerate);
       }
     });
   }
 
   public synchronized List<CaptureFormat> getSupportedFormats() {
-    return CameraEnumerationAndroid.supportedFormats.get(id);
+    return CameraEnumerationAndroid.getSupportedFormats(id);
   }
 
   // Return a list of timestamps for the frames that have been sent out, but not returned yet.
   // Useful for logging and testing.
   public String pendingFramesTimeStamps() {
     return videoBuffers.pendingFramesTimeStamps();
   }
 
   private VideoCapturerAndroid() {
     Log.d(TAG, "VideoCapturerAndroid");
   }
 
   // Called by native code.
-  // Enumerates resolution and frame rates for all cameras to be able to switch
-  // cameras. Initializes local variables for the camera named |deviceName| and
-  // starts a thread to be used for capturing.
-  // If deviceName is empty, the first available device is used in order to be
-  // compatible with the generic VideoCapturer class.
+  // Initializes local variables for the camera named |deviceName|. If |deviceName| is empty, the
+  // first available device is used in order to be compatible with the generic VideoCapturer class.
   synchronized boolean init(String deviceName) {
     Log.d(TAG, "init: " + deviceName);
-    if (deviceName == null || !CameraEnumerationAndroid.initStatics())
+    if (deviceName == null)
       return false;
 
     boolean foundDevice = false;
     if (deviceName.isEmpty()) {
       this.id = 0;
       foundDevice = true;
     } else {
       for (int i = 0; i < Camera.getNumberOfCameras(); ++i) {
         String existing_device = CameraEnumerationAndroid.getDeviceName(i);
         if (existing_device != null && deviceName.equals(existing_device)) {
@@ skipping 498 matching lines @@
     }
 
     private native void nativeCapturerStarted(long nativeCapturer,
         boolean success);
     private native void nativeOnFrameCaptured(long nativeCapturer,
         byte[] data, int length, int width, int height, int rotation, long timeStamp);
     private native void nativeOnOutputFormatRequest(long nativeCapturer,
         int width, int height, int fps);
   }
 }