base: disable Process.LaunchMac on arm64

Bug: 1154345
Change-Id: I9294122e63a9d319fae7c1b4200eff08d2b6d640
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568261
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#832523}

base/process/launch_unittest_mac.cc

@@ -59,7 +59,13 @@ void LaunchMacTest(const FilePath& exe_path,
   EXPECT_EQ(output, expected_output);
 }
 
-TEST(Process, LaunchMac) {
+#if defined(ARCH_CPU_ARM64)
+// Bulk-disabled on arm64 for bot stabilization: https://crbug.com/1154345
+#define MAYBE_LaunchMac DISABLED_LaunchMac
+#else
+#define MAYBE_LaunchMac LaunchMac
+#endif
+TEST(Process, MAYBE_LaunchMac) {
   FilePath data_dir;
   ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &data_dir));
   data_dir = data_dir.AppendASCII("mac");