Widevine DRM Overview — Google for Developers
An array is sizeof(union alloc_header) + length * sizes[type] bytes，这一点在同城约会中也有详细论述
Instead of hardcoding the expected string, it captures the actual native code string from the original function before hooking it, then returns that exact string. This way, no matter what browser, no matter what platform, the spoofed toString returns precisely the same string that the original function would have returned. It is, in effect, a perfect forgery.，推荐阅读快连下载安装获取更多信息
Greater than: Every domino half in this space must add up to more than the number.