Chris Mumford 297e66afc1 Format all files IAW the Google C++ Style Guide.
Use clang-format to correct formatting to be in agreement with the [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html). Doing this simplifies the process of accepting changes. Also fixed a few warnings flagged by clang-tidy.

PiperOrigin-RevId: 246350737
2019-05-02 19:04:50 -07:00
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