Add CFI suppression for X11 capturer code moved to a different folder

WebRTC is going to organize capturer code into sub-folders and when we
move x_server_pixel_buffer.cc into a different folder, it will no
longer pass CFI check.

Bug: webrtc:13429
Change-Id: I7868699fcc5abb87122fc46e57e005a0e3855892
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3325462
Reviewed-by: Mark Foltz <mfoltz@chromium.org>
Reviewed-by: Evgenii Stepanov <eugenis@chromium.org>
Commit-Queue: Mark Foltz <mfoltz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#950186}
NOKEYCHECK=True
GitOrigin-RevId: 61bfebe88d69e57492a48f7d1c9e0f104b929b3f
diff --git a/ignores.txt b/ignores.txt
index 1e764e2..0a074a3 100644
--- a/ignores.txt
+++ b/ignores.txt
@@ -187,6 +187,7 @@
 
 src:*chrome/browser/ui/zoom/chrome_zoom_level_prefs.cc
 src:*third_party/webrtc/modules/desktop_capture/linux/x_server_pixel_buffer.cc
+src:*third_party/webrtc/modules/desktop_capture/linux/x11/x_server_pixel_buffer.cc
 src:*media/cdm/*
 src:*third_party/swiftshader/*
 src:*base/native_library_unittest.cc