Fix the breakage in QUICHE standalone build.

This adds some missing Abseil dependencies for cl/456835160, and reverts unintended changes from cl/457025493.

PiperOrigin-RevId: 457452291

build/BUILD.bazel

diff --git a/build/BUILD.bazel b/build/BUILD.bazel
new file mode 100644
index 0000000..0ba41e4
--- /dev/null
+++ b/build/BUILD.bazel
@@ -0,0 +1,7 @@
+# Copyright 2022 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.
+
+licenses(["notice"])
+
+exports_files(["source_list.json"])

quiche/BUILD.bazel

diff --git a/quiche/BUILD.bazel b/quiche/BUILD.bazel
index 6650f84..f372de7 100644
--- a/quiche/BUILD.bazel
+++ b/quiche/BUILD.bazel
@@ -156,6 +156,7 @@
         "@com_google_absl//absl/numeric:int128",
         "@com_google_absl//absl/strings",
         "@com_google_absl//absl/strings:str_format",
+        "@com_google_absl//absl/time",
         "@com_google_absl//absl/types:optional",
         "@com_google_absl//absl/types:span",
         "@com_google_googleurl//url",