Don't cross-compile tools used for creating diff installers.

Diff installer creation runs on the same hosts that the build runs on,
so should create binaries for the same architecture.

BUG=1119472
R=​[email protected], [email protected]

(cherry picked from commit 6912cdb0965dc335beed4eb27c41fe8bb58f4184)

Change-Id: I58772ce20b47cf9ce854a095de3aac3cf697d5ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454390
Commit-Queue: Michael Moss <[email protected]>
Auto-Submit: Michael Moss <[email protected]>
Reviewed-by: Mark Mentovai <[email protected]>
Cr-Original-Commit-Position: refs/heads/master@{#814475}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2454931
Reviewed-by: Michael Moss <[email protected]>
Cr-Commit-Position: refs/branch-heads/4280@{#93}
Cr-Branched-From: ea420fb963f9658c9969b6513c56b8f47efa1a2a-refs/heads/master@{#812852}
diff --git a/chrome/installer/mac/BUILD.gn b/chrome/installer/mac/BUILD.gn
index 108dd95d..09faabc 100644
--- a/chrome/installer/mac/BUILD.gn
+++ b/chrome/installer/mac/BUILD.gn
@@ -60,19 +60,22 @@
   deps = [
     ":copy_signing",
     "//chrome:entitlements",
-    "//chrome/installer/mac/third_party/bsdiff:goobsdiff",
+    "//chrome/installer/mac/third_party/bsdiff:goobsdiff($host_toolchain)",
     "//chrome/installer/mac/third_party/bsdiff:goobspatch",
     "//chrome/installer/mac/third_party/xz:lzma_decompress",
-    "//chrome/installer/mac/third_party/xz:xz",
+    "//chrome/installer/mac/third_party/xz:xz($host_toolchain)",
     "//chrome/installer/mac/third_party/xz:xzdec",
   ]
 
   sources = [
     "$root_gen_dir/chrome/app-entitlements.plist",
-    "$root_out_dir/goobsdiff",
+    get_label_info(
+            "//chrome/installer/mac/third_party/bsdiff:goobsdiff($host_toolchain)",
+            "root_out_dir") + "/goobsdiff",
     "$root_out_dir/goobspatch",
     "$root_out_dir/liblzma_decompress.dylib",
-    "$root_out_dir/xz",
+    get_label_info("//chrome/installer/mac/third_party/xz:xz($host_toolchain)",
+                   "root_out_dir") + "/xz",
     "$root_out_dir/xzdec",
     "//chrome/app/helper-gpu-entitlements.plist",
     "//chrome/app/helper-plugin-entitlements.plist",