Merge "fix a crasher in dumpsys"

    for (int i=0 ; i<mBufferCount ; i++) {

        const BufferSlot& slot(mSlots[i]);

        const sp<GraphicBuffer>& buf(slot.mGraphicBuffer);

        snprintf(buffer, SIZE,

                "%s%s[%02d] "

                "%p [%4ux%4u:%4u,%3X] "

                "state=%-8s, crop=[%d,%d,%d,%d], "

                "transform=0x%02x, timestamp=%lld\n",

                "transform=0x%02x, timestamp=%lld",

                prefix, (i==mCurrentTexture)?">":" ", i,

                buf->handle, buf->width, buf->height, buf->stride, buf->format,

                stateName(slot.mBufferState),

                slot.mCrop.left, slot.mCrop.top, slot.mCrop.right, slot.mCrop.bottom,

                slot.mTransform, slot.mTimestamp

        );

        result.append(buffer);

        const sp<GraphicBuffer>& buf(slot.mGraphicBuffer);

        if (buf != NULL) {

            snprintf(buffer, SIZE,

                    ", %p [%4ux%4u:%4u,%3X]",

                    buf->handle, buf->width, buf->height, buf->stride, buf->format);

            result.append(buffer);

        }

        result.append("\n");

    }

}