Reapply git EOL policy for .in files.

Bug: pdfium:1302
Tbr: hnakashima@chromium.org

Change-Id: Ifb276b808227876024840f3a2098634188ae7b98
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/60130
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/.gitattributes b/.gitattributes
index 5d75502..d6c87bf 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -6,8 +6,7 @@
 *.gn text eol=lf
 *.gni text eol=lf
 *.h text eol=lf
-# Temporarily disabled. https://crbug.com/pdfium/1302
-# *.in text eol=lf
+ *.in text eol=lf
 *.js text eol=lf
 *.md text eol=lf
 *.mm text eol=lf