
Before this CL, functions declared in cpu_features_wrapper.h where not defined in the same build target, causing brittle builds that might fail at link time if the binary was not depending on //system_wrappers (the target with the definitions), violating [1]. This CL moves everything into //system_wrappers and also moves cpu_features_wrapper.h definitions from C to C++ (in order to be able to add the definitions to a C++ build target like //system_wrappers). [1] - https://webrtc.googlesource.com/src/+/refs/heads/master/style-guide.md#h-cc-pairs Bug: None Change-Id: I5a0009cddb17206b19f2a71eeba722faacc4bcae Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/183380 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32039}