Move matrix from VideoFrame to TextureBuffer.

webrtc/sdk/android/src/java/org/webrtc/I420BufferImpl.java

 /*
  *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 107 matching lines @@
     ++refCount;
   }
 
   @Override
   public void release() {
     if (--refCount == 0 && releaseCallback != null) {
       releaseCallback.onRelease();
     }
   }
 
+  @Override
+  public VideoFrame.Buffer cropAndScale(
+      int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) {
+    return VideoFrame.cropAndScaleI420(
+        this, cropX, cropY, cropWidth, cropHeight, scaleWidth, scaleHeight);
+  }
   // Callback called when the frame is no longer referenced.
   interface ReleaseCallback {
     // Called when the frame is no longer referenced.
     void onRelease();
   }
 }