Update V8 DEPS.

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/402bc6d..4b7e3ce

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/879ac09..9518a57

This also ports:
https://crrev.com/c/1410527

TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org

Bug: chromium:922379
Change-Id: I3982ace35bb762e7f5c85ba9468739aedd3bcd78
Reviewed-on: https://chromium-review.googlesource.com/c/1424659Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58994}

DEPS

@@ -16,7 +16,7 @@ vars = {
 
 deps = {
   'v8/build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + '402bc6d411d747879f1109aad176769ac8a14dd7',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + '4b7e3cec8efe257db05520bf68d5a626c7eb525a',
   'v8/third_party/depot_tools':
     Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + 'f7971436824dd8eeb9b0cf19dabc3e32b369a904',
   'v8/third_party/icu':
@@ -48,7 +48,7 @@ deps = {
     'condition': 'checkout_fuchsia',
   },
   'v8/third_party/googletest/src':
-    Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + '879ac092fde0a19e1b3a61b2546b2a422b1528bc',
+    Var('chromium_url') + '/external/github.com/google/googletest.git' + '@' + '9518a57428ae0a7ed450c1361768e84a2a38af5a',
   'v8/third_party/jinja2':
     Var('chromium_url') + '/chromium/src/third_party/jinja2.git' + '@' + 'b41863e42637544c2941b574c7877d3e1f663e25',
   'v8/third_party/markupsafe':

third_party/googletest/BUILD.gn

@@ -52,6 +52,7 @@ source_set("gtest") {
     # TODO(crbug.com/829773): Remove this after transitioning off <tr1/tuple>.
     "custom/gmock/internal/custom/gmock-port.h",
     "src/googletest/include/gtest/gtest-death-test.h",
+    "src/googletest/include/gtest/gtest-matchers.h",
     "src/googletest/include/gtest/gtest-message.h",
     "src/googletest/include/gtest/gtest-param-test.h",
     "src/googletest/include/gtest/gtest-printers.h",
@@ -75,6 +76,7 @@ source_set("gtest") {
     "src/googletest/src/gtest-death-test.cc",
     "src/googletest/src/gtest-filepath.cc",
     "src/googletest/src/gtest-internal-inl.h",
+    "src/googletest/src/gtest-matchers.cc",
     "src/googletest/src/gtest-port.cc",
     "src/googletest/src/gtest-printers.cc",
     "src/googletest/src/gtest-test-part.cc",
@@ -119,16 +121,21 @@ source_set("gmock") {
   sources = [
     "src/googlemock/include/gmock/gmock-actions.h",
     "src/googlemock/include/gmock/gmock-cardinalities.h",
+    "src/googlemock/include/gmock/gmock-function-mocker.h",
     "src/googlemock/include/gmock/gmock-generated-actions.h",
     "src/googlemock/include/gmock/gmock-generated-function-mockers.h",
     "src/googlemock/include/gmock/gmock-generated-matchers.h",
     "src/googlemock/include/gmock/gmock-generated-nice-strict.h",
     "src/googlemock/include/gmock/gmock-matchers.h",
+    "src/googlemock/include/gmock/gmock-more-actions.h",
+    "src/googlemock/include/gmock/gmock-more-matchers.h",
+    "src/googlemock/include/gmock/gmock-nice-strict.h",
     "src/googlemock/include/gmock/gmock-spec-builders.h",
     "src/googlemock/include/gmock/gmock.h",
     "src/googlemock/include/gmock/internal/gmock-generated-internal-utils.h",
     "src/googlemock/include/gmock/internal/gmock-internal-utils.h",
     "src/googlemock/include/gmock/internal/gmock-port.h",
+    "src/googlemock/include/gmock/internal/gmock-pp.h",
 
     # gmock helpers.
     "custom/gmock/internal/custom/gmock-port.h",

third_party/googletest/README.chromium

 Name: Google Test: Google's C++ Testing Framework
 Short Name: googletest
 URL: https://github.com/google/googletest.git
-Version: 1.8.0.git-7d15497f7538fb531d0f025929d080743af421ee
+Version: 1.8.0.git-9518a57428ae0a7ed450c1361768e84a2a38af5a
 License: BSD
 Security critical: no