Restore is_ash for backward compatible.

Author: jianjunz

scripts/prepare_dev.py

@@ -38,6 +38,7 @@
     ('0007-Fix-examples-path-error.patch', BUILD_PATH),
     ('0008-Disable-loop-range-analysis-when-build-with-Xcode-cl.patch', BUILD_PATH),
     ('0009-Export-WebRTC-symbols-on-iOS.patch', BUILD_PATH),
+    ('0010-Restore-is_ash-for-backward-compatible.patch', BUILD_PATH),
     ('0013-Remove-unused-gni-for-av1-build.patch', THIRD_PARTY_PATH),
     ('0014-Fix-missing-ffmpeg-configure-item-for-msvc-build.patch', FFMPEG_PATH)
 ]

talk/owt/patches/0010-Restore-is_ash-for-backward-compatible.patch

@@ -0,0 +1,26 @@
+From 4c01af961bd7f4111ce24cbe884d52d46d4b2956 Mon Sep 17 00:00:00 2001
+From: Jianjun Zhu <[email protected]>
+Date: Wed, 24 Feb 2021 15:06:02 +0800
+Subject: [PATCH] Restore is_ash for backward compatible.
+
+---
+ config/chromeos/ui_mode.gni | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/config/chromeos/ui_mode.gni b/config/chromeos/ui_mode.gni
+index df578bc92..12a973f84 100644
+--- a/config/chromeos/ui_mode.gni
++++ b/config/chromeos/ui_mode.gni
+@@ -31,6 +31,9 @@ declare_args() {
+ # toolchains.
+ is_chromeos_ash = is_chromeos && !chromeos_is_browser_only
+ 
++# Restore is_ash for backward compatible.
++is_ash = is_chromeos_ash
++
+ # TODO(crbug.com/1052397): Remove is_linux once lacros-chrome switches
+ # to target_os=chromeos
+ is_chromeos_lacros = (is_chromeos || is_linux) && chromeos_is_browser_only
+-- 
+2.30.1
+