Android video capture: use new libyuv::Android420ToI420 API for format converting.

media/capture/video/android/java/src/org/chromium/media/VideoCapture.java

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.media;
 
 import android.content.Context;
 import android.graphics.ImageFormat;
 import android.view.Surface;
 import android.view.WindowManager;
 
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 
+import java.nio.ByteBuffer;
+
 /**
  * Video Capture Device base class, defines a set of methods that native code
  * needs to use to configure, start capture, and to be reached by callbacks and
  * provides some neccesary data type(s) with accessors.
  **/
 @JNINamespace("media")
 public abstract class VideoCapture {
     // The angle (0, 90, 180, 270) that the image needs to be rotated to show in
     // the display's native orientation.
     protected int mCameraNativeOrientation;
@@ skipping 90 matching lines @@
                 orientation = 0;
                 break;
         }
         return orientation;
     }
 
     // Method for VideoCapture implementations to call back native code.
     public native void nativeOnFrameAvailable(
             long nativeVideoCaptureDeviceAndroid, byte[] data, int length, int rotation);
 
+    public native void nativeOnI420FrameAvailable(long nativeVideoCaptureDeviceAndroid,
+            ByteBuffer yBuffer, int yStride, ByteBuffer uBuffer, ByteBuffer vBuffer,
+            int uvRowStride, int uvPixelStride, int width, int height, int rotation);
+
     // Method for VideoCapture implementations to signal an asynchronous error.
     public native void nativeOnError(long nativeVideoCaptureDeviceAndroid, String message);
 
     // Method for VideoCapture implementations to send Photos back to.
     public native void nativeOnPhotoTaken(
             long nativeVideoCaptureDeviceAndroid, long callbackId, byte[] data);
 }