Bug 1361462 - Add tooltool_cache for Windows Talos jobs r=aki

MozReview-Commit-ID: LUNJuFMgwm8

--HG--
extra : rebase_source : a6c9f21aa8ef033d34f8ad18d54a803e25581760

testing/mozharness/configs/talos/windows_config.py

@@ -43,6 +43,7 @@ config = {
     "blob_uploader_auth_file": os.path.join(os.getcwd(), "oauth.txt"),
     "metro_harness_path_frmt": "%(metro_base_path)s/metro/metrotestharness.exe",
     "download_minidump_stackwalk": True,
+    "tooltool_cache": os.path.join('c:\\', 'build', 'tooltool_cache'),
     "minidump_stackwalk_path": "win32-minidump_stackwalk.exe",
     "minidump_tooltool_manifest_path": "config/tooltool-manifests/win32/releng.manifest",
 }