* This is too brittle and might clash with MSVC's M_PI. See [1]. * We only used it once (in a unit test). * We shouldn't use PI anyway [2]. Instead, pull it from <cmath> with _USE_MATH_DEFINES, like it's already done in the code base. [1] https://ci.chromium.org/p/webrtc/builders/try/win_x86_msvc_rel/6844 [2] https://tauday.com/tau-manifesto Bug: webrtc:9855 Change-Id: I7a6976240604ef367ea07478d8cb5e4020e5dfeb Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132548 Reviewed-by: Alessio Bazzica <alessiob@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Yves Gerey <yvesg@google.com> Cr-Commit-Position: refs/heads/master@{#27597}