Merge "SurfaceUtils: query CONSUMER_IS_PROTECTED" into oc-dev am: 9694ba34

            return err;

        }

        // Check if the ANativeWindow uses hardware protected buffers.

        if (queuesToNativeWindow != 1 && !(consumerUsage & GRALLOC_USAGE_PROTECTED)) {

            ALOGE("native window could not be authenticated");

        // Check if the consumer end of the ANativeWindow can handle protected content.

        int isConsumerProtected = 0;

        err = nativeWindow->query(

                nativeWindow, NATIVE_WINDOW_CONSUMER_IS_PROTECTED, &isConsumerProtected);

        if (err != NO_ERROR) {

            ALOGE("error query native window: %s (%d)", strerror(-err), -err);

            return err;

        }

        // Deny queuing into native window if neither condition is satisfied.

        if (queuesToNativeWindow != 1 && isConsumerProtected != 1) {

            ALOGE("native window cannot handle protected buffers: the consumer should either be "

                  "a hardware composer or support hardware protection");

            return PERMISSION_DENIED;

        }

    }