Update vendored deps

third_party/abseil-cpp/absl/memory/BUILD.gn

@@ -0,0 +1,29 @@
+# Copyright 2018 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//third_party/abseil-cpp/absl.gni")
+
+absl_source_set("memory") {
+  public = [ "memory.h" ]
+  deps = [
+    "//third_party/abseil-cpp/absl/base:core_headers",
+    "//third_party/abseil-cpp/absl/meta:type_traits",
+  ]
+}
+
+absl_source_set("memory_test") {
+  testonly = true
+
+  # TODO(https://crbug.com/1116473): memory_test.cc fails to build in
+  # standalone ANGLE on Windows
+  if (!build_with_chromium && !is_win) {
+    sources = [ "memory_test.cc" ]
+    deps = [
+      ":memory",
+      "//third_party/abseil-cpp/absl/base:core_headers",
+      "//third_party/googletest:gmock",
+      "//third_party/googletest:gtest",
+    ]
+  }
+}