Roll googletest to the same version as Chromium.

Bug: chromium:925652
Change-Id: I849ae33666322b2282232767dbfb67195148cd32
Reviewed-on: https://dawn-review.googlesource.com/c/4920
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

DEPS

diff --git a/DEPS b/DEPS
index 15f9725..3587202 100644
--- a/DEPS
+++ b/DEPS
@@ -34,7 +34,7 @@
     'condition': 'dawn_standalone',
   },
   'third_party/googletest': {
-    'url': '{chromium_git}/external/github.com/google/googletest@98a0d007d7092b72eea0e501bb9ad17908a1a036',
+    'url': '{chromium_git}/external/github.com/google/googletest@5ec7f0c4a113e2f18ac2c6cc7df51ad6afc24081',
     'condition': 'dawn_standalone',
   },