Summary:
Moves from CSSNodeDEPRECATED to CSSNode. This has shown to be a huge performance win for layout time within FB.
This is BREAKING because CSSNode contains bug fixes that were not migrated to CSSNodeDEPRECATED which may change the way your layout appears. The most common of these by far involves `flex: 1`.
Previously, developers had to put `flex: 1` in many places it didn't belong in order to work around a bug in css-layout. Now `flex: 1` is treated properly and, unfortunately, this means that your layout may no longer look correct. Specifically, you may see that your layout looks collapsed, or children don't render. The fix is to simply remove `flex: 1` from those containers.
Reviewed By: emilsjolander
Differential Revision: D3992787
fbshipit-source-id: 7a3a2a34a8941c0524e6ba3c5379e434d3e03247
Summary:
Update to [OkHttp](https://github.com/square/okhttp) to [OkHttp3](https://publicobject.com/2015/12/12/com-squareup-okhttp3/)
We must also update:
- Fresco to 0.10.0
- okio to 1.8.0
**Motivation**
Reasons for upgrading:
* Issue #4021
* "We discovered that RN Android sometimes fails to connect to the latest stable version of NGINX when HTTP/2 is enabled. We aren't seeing errors with other HTTP clients so we think it's specific to RN and OkHttp. Square has fixed several HTTP/2 bugs over the past eight months." - ide
* OkHttp3 will be maintained & improved, but OkHttp2 will only receive [security fixes](https://publicobject.com/2016/02/11/okhttp-certificate-pinning-vulnerability/)
* Cleaner APIs - "Get and Set prefixes are avoided"
* Deprecated/Removed - HttpURLConnection & Apache HTTP
* React Native apps are currently being forced to bundle two versions of OkHttp (v2 & v3), if another library uses v3
* Improved WebSocket performance - [CHANGELOG.md](https://github.com/square/okhttp/blob/master
Closes https://github.com/facebook/react-native/pull/6113
Reviewed By: andreicoman11, lexs
Differential Revision: D3292375
Pulled By: bestander
fbshipit-source-id: 7c7043eaa2ea63f95854108b401c4066098d67f7
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