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, 3 insertions, 3 deletions

diff --git a/imposed_ensemble_matcher_unittest.cc b/imposed_ensemble_matcher_unittest.cc
index 85f1016..9a6dc7d 100644
--- a/imposed_ensemble_matcher_unittest.cc
+++ b/imposed_ensemble_matcher_unittest.cc
@@ -14,12 +14,12 @@
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/check_op.h"
-#include "base/optional.h"
 #include "components/zucchini/buffer_view.h"
 #include "components/zucchini/disassembler.h"
 #include "components/zucchini/element_detection.h"
 #include "components/zucchini/image_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/abseil-cpp/absl/types/optional.h"
 
 namespace zucchini {
 
@@ -36,14 +36,14 @@ class TestElementDetector {
  public:
   TestElementDetector() {}
 
-  base::Optional<Element> Run(ConstBufferView image) const {
+  absl::optional<Element> Run(ConstBufferView image) const {
     DCHECK_GT(image.size(), 0U);
     char first_char = *image.begin();
     if (first_char == 'W' || first_char == 'w')
       return Element(image.local_region(), kExeTypeWin32X86);
     if (first_char == 'E' || first_char == 'e')
       return Element(image.local_region(), kExeTypeElfX86);
-    return base::nullopt;
+    return absl::nullopt;
   }
 };