This CL introduces the utility macro RTC_EXPORT which will let WebRTC
developers decide which symbols are supposed to be exported/imported
and which ones are private.
RTC_EXPORT will only export/import symbols in a component build, more
info: https://cs.chromium.org/chromium/src/docs/component_build.md.
During a component build, the macro COMPONENT_BUILD will be globally
defined in a consistent fashion so it is safe to rely on it to
understand how to expand RTC_EXPORT.
In a non component build, RTC_EXPORT will expand to nothing.
Bug: webrtc:9419
Change-Id: Ic58162783be7f5883136ade27f324d6d34fdf932
Reviewed-on: https://webrtc-review.googlesource.com/97960
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Reviewed-by: Yves Gerey <yvesg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24757}
55daf1aef6