Use backslashes for Windows paths in determinism whitelist.

Bug: 429358
Change-Id: I8703b47bb3094f7918456685545b786d78f09ddb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1900291
Commit-Queue: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Auto-Submit: Joshua Pawlicki <waffles@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712731}

tools/determinism/deterministic_build_whitelist.pyl

@@ -57,10 +57,10 @@
     'ppapi_nacl_tests_pnacl_newlib_x64.nexe',
 
     # https://crbug.com/429358
-    'nacl_test_data/extension_vcache_test/glibc/extension_validation_cache_libs/lib32/libppapi_cpp_lib.dll',
-    'nacl_test_data/glibc/pm_exit_status_test_libs/lib32/libppapi_cpp_lib.dll',
-    'nacl_test_data/glibc/simple_libs/lib32/libppapi_cpp_lib.dll',
-    'nacl_test_data/glibc/sysconf_nprocessors_onln_test_libs/lib32/libppapi_cpp_lib.dll',
+    'nacl_test_data\\extension_vcache_test\\glibc\\extension_validation_cache_libs\\lib32\\libppapi_cpp_lib.dll',
+    'nacl_test_data\\glibc\\pm_exit_status_test_libs\\lib32\\libppapi_cpp_lib.dll',
+    'nacl_test_data\\glibc\\simple_libs\\lib32\\libppapi_cpp_lib.dll',
+    'nacl_test_data\\glibc\\sysconf_nprocessors_onln_test_libs\\lib32\\libppapi_cpp_lib.dll',
 
     # TODO(thakis): Figure out what's up with these three (and their isolate).
     'mini_installer.exe',