I will enable /Zc:DllexportInlines- flags for faster build time on windows.
But the flag makes clang's -Wundefined-inline check more strict as a secondary effect.

Actually, having inline function specifier for the function not defined in header file seems bit strange.
Let me remove inline specifier from such functions.

Bug: chromium:857548, chromium:901709
Change-Id: Ic06d10e2445cfedc7af67b72154f93a51ac26853
Reviewed-on: https://chromium-review.googlesource.com/c/1186017
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57229}