components: Replace base::Optional and friends with absl counterparts

This replaces:
- base::Optional -> absl::optional
- include "base/optional.h"
  ->
  include "third_party/abseil-cpp/absl/types/optional.h"
- base::nullopt -> absl::nullopt
- base::make_optional -> absl::make_optional

Bug: 1202909
Change-Id: If697b7bf69b199c1796f873eedca3359cdb48c64
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2897151
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Owners-Override: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#883296}
NOKEYCHECK=True
GitOrigin-RevId: 1156b5f891de178171e71b9221a96bef1ced3d3b

1 files changed, 2 insertions, 2 deletions

diff --git a/abs32_utils_unittest.cc b/abs32_utils_unittest.cc
index 77a2599..ddbb685 100644
--- a/abs32_utils_unittest.cc
+++ b/abs32_utils_unittest.cc
@@ -287,7 +287,7 @@ TEST(Abs32UtilsTest, Win32Read32) {
     Abs32ReaderWin32 reader(std::move(extractor), translator);
 
     // Loop over |expected_ref| to check element-by-element.
-    base::Optional<Reference> ref;
+    absl::optional<Reference> ref;
     for (const auto& expected_ref : test_case.expected_refs) {
       ref = reader.GetNext();
       EXPECT_TRUE(ref.has_value());
@@ -322,7 +322,7 @@ TEST(Abs32UtilsTest, Win32Read64) {
   Abs32ReaderWin32 reader(std::move(extractor), translator);
 
   std::vector<Reference> refs;
-  base::Optional<Reference> ref;
+  absl::optional<Reference> ref;
   for (ref = reader.GetNext(); ref.has_value(); ref = reader.GetNext())
     refs.push_back(ref.value());
   EXPECT_EQ(expected_refs, refs);