Merge "CameraSource: Remove CHECK if set preview target fails with CameraSource"

    // Set the preview display. Skip this if mSurface is null because

    // applications may already set a surface to the camera.

    if (mSurface != NULL) {

        // This CHECK is good, since we just passed the lock/unlock

        // check earlier by calling mCamera->setParameters().

        CHECK_EQ((status_t)OK, mCamera->setPreviewTarget(mSurface));

        // Surface may be set incorrectly or could already be used even if we just

        // passed the lock/unlock check earlier by calling mCamera->setParameters().

        if ((err = mCamera->setPreviewTarget(mSurface)) != OK) {

            return err;

        }

    }

    // Use buffer queue to receive video buffers from camera