tree b7e8f0b91cc0272de670790fead9eae882185164
parent ef0f8a4dab540d2dfeeb2edbd929d8bd3efbb0e2
author Arc Wang <arcwang@google.com> 1558512268 +0800
committer Arc Wang <arcwang@google.com> 1558680186 +0800

Fix Wi-Fi QR scanner crash problem

1. Should only set picture size from the list of supported picture sizes.
   To choose the best picture size, we should keep ratio as preview size to
   avoid image distortion and QR code scan failure.

2. When Camera#setOneShotPreviewCallback callbacks, the image data is of
   preview size, not picture size.

Bug: 132866467
Test: QrCameraTest
      manual
Change-Id: I087e5fcdf064f111e915e0872b50ca5a45ff1d26