Pin mac_toolchain to 9a1adc55bf4a1173784da3ba2f8cb06421606748

Bug:978867
Change-Id: I92bdef0d5871354a442947fbf74614ce0d896aae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1859896Reviewed-by: John Budorick <jbudorick@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Lindsay Pasricha <lindsayw@chromium.org>

cipd_manifest.txt

@@ -34,7 +34,7 @@ infra/tools/luci/led/${platform} git_revision:423aa5860a7b6322451baccb1e087f0781
 infra/tools/luci/lucicfg/${platform} git_revision:79dd13c2262d61758111e6d7205e44d94ef47fbc
 
 # Mac toolchain installer
-infra/tools/mac_toolchain/${os=mac}-${arch} git_revision:47354a337f7eb444f2cb1e1b5d30ac3940f1d097
+infra/tools/mac_toolchain/${os=mac}-${arch} git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748
 
 # LUCI rpc command line tool
 infra/tools/prpc/${platform} git_revision:edd5644be66d37cdf82978efb0e5d6504d0d552f

cipd_manifest.versions

@@ -266,8 +266,8 @@ infra/tools/luci/vpython/windows-amd64
 	CSc-GH9UCrg-9ALGmQKgGS7GcIZzadZKth3eCLL3jPQC
 
 infra/tools/mac_toolchain/mac-amd64
-	git_revision:47354a337f7eb444f2cb1e1b5d30ac3940f1d097
-	qeuJWCEG8k8sDHF66tpTllhiWuGcl1m_TtpuhuwhrFsC
+	git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748
+	RiLbLddPgcxbnzu6nBOHc6RWmP6zO6vWQtWr9zoW2qQC
 
 infra/tools/prpc/linux-386
 	git_revision:edd5644be66d37cdf82978efb0e5d6504d0d552f