Part of a chain causing compile errors on Mac. Example:

../../third_party/angle/src/compiler/translator/IntermNode.cpp:1216:89: error: no member named 'sin' in namespace 'std'; did you mean 'sinf'?

http://build.chromium.org/p/chromium.gpu.fyi/builders/GPU%20Linux%20Builder/builds/33747

This reverts commit 1767e6b4.

Change-Id: Ie39b1bf9a08da61aa0b16e219b34d1ba0b6f6c0f
Reviewed-on: https://chromium-review.googlesource.com/265587Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>