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, 5 insertions, 5 deletions

diff --git a/element_detection.cc b/element_detection.cc
index bec16be..8682c78 100644
--- a/element_detection.cc
+++ b/element_detection.cc
@@ -118,11 +118,11 @@ std::unique_ptr<Disassembler> MakeDisassemblerOfType(ConstBufferView image,
   }
 }
 
-base::Optional<Element> DetectElementFromDisassembler(ConstBufferView image) {
+absl::optional<Element> DetectElementFromDisassembler(ConstBufferView image) {
   std::unique_ptr<Disassembler> disasm = MakeDisassemblerWithoutFallback(image);
   if (disasm)
     return Element({0, disasm->size()}, disasm->GetExeType());
-  return base::nullopt;
+  return absl::nullopt;
 }
 
 /******** ProgramScanner ********/
@@ -132,18 +132,18 @@ ElementFinder::ElementFinder(ConstBufferView image, ElementDetector&& detector)
 
 ElementFinder::~ElementFinder() = default;
 
-base::Optional<Element> ElementFinder::GetNext() {
+absl::optional<Element> ElementFinder::GetNext() {
   for (; pos_ < image_.size(); ++pos_) {
     ConstBufferView test_image =
         ConstBufferView::FromRange(image_.begin() + pos_, image_.end());
-    base::Optional<Element> element = detector_.Run(test_image);
+    absl::optional<Element> element = detector_.Run(test_image);
     if (element) {
       element->offset += pos_;
       pos_ = element->EndOffset();
       return element;
     }
   }
-  return base::nullopt;
+  return absl::nullopt;
 }
 
 }  // namespace zucchini