Rename {absl => std}::optional in //chrome/

#cleanup

Automated patch, intended to be effectively a no-op.

Context:
https://groups.google.com/a/chromium.org/g/cxx/c/nBD_1LaanTc/m/ghh-ZZhWAwAJ?utm_medium=email

As of https://crrev.com/1204351, absl::optional is now a type alias for
std::optional. We should migrate toward it.

Script:
```
function replace {
  echo "Replacing $1 by $2"
  git grep -l "$1" \
    | cut -f1 -d: \
    | grep \
      -e "^chrome/" \
    | sort \
    | uniq \
    | grep \
      -e "\.h" \
      -e "\.cc" \
      -e "\.mm" \
      -e "\.py" \
    | xargs sed -i "s/$1/$2/g"
}
replace "absl::make_optional" "std::make_optional"
replace "absl::optional" "std::optional"
replace "absl::nullopt" "std::nullopt"
replace "absl::in_place" "std::in_place"
replace "absl::in_place_t" "std::in_place_t"
replace "\"third_party\/abseil-cpp\/absl\/types\/optional.h\"" "<optional>"

echo "IncludeBlocks: Regroup" >> ".clang-format"
echo "IncludeIsMainRegex: \"(_(android|apple|chromeos|freebsd|fuchsia|fuzzer|ios|linux|mac|nacl|openbsd|posix|stubs?|win))?(_(unit|browser|perf)?tests?)?$\"" >> ".clang-format"
git cl format
git restore ".clang-format"

git cl format
```


Bug: chromium:1500249
Change-Id: I5f8d179940c7af6a927efbf7e70b972a845a4127
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5192010
Reviewed-by: Anastasiia N <[email protected]>
Commit-Queue: Arthur Sonzogni <[email protected]>
Reviewed-by: Avi Drissman <[email protected]>
Auto-Submit: Arthur Sonzogni <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1247101}
diff --git a/chrome/browser/certificate_provider/sign_requests.h b/chrome/browser/certificate_provider/sign_requests.h
index 7470b71..c765a8c6 100644
--- a/chrome/browser/certificate_provider/sign_requests.h
+++ b/chrome/browser/certificate_provider/sign_requests.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_CERTIFICATE_PROVIDER_SIGN_REQUESTS_H_
 
 #include <map>
+#include <optional>
 #include <string>
 #include <utility>
 #include <vector>
@@ -15,7 +16,6 @@
 #include "components/account_id/account_id.h"
 #include "net/cert/x509_certificate.h"
 #include "net/ssl/ssl_private_key.h"
-#include "third_party/abseil-cpp/absl/types/optional.h"
 
 namespace chromeos {
 namespace certificate_provider {
@@ -29,11 +29,10 @@
 
   // Returns the id of the new request. The returned request id is specific to
   // the given extension.
-  int AddRequest(
-      const std::string& extension_id,
-      const scoped_refptr<net::X509Certificate>& certificate,
-      const absl::optional<AccountId>& authenticating_user_account_id,
-      net::SSLPrivateKey::SignCallback callback);
+  int AddRequest(const std::string& extension_id,
+                 const scoped_refptr<net::X509Certificate>& certificate,
+                 const std::optional<AccountId>& authenticating_user_account_id,
+                 net::SSLPrivateKey::SignCallback callback);
 
   // Returns the list of requests that correspond to the authentication of the
   // given user.
@@ -56,14 +55,14 @@
  private:
   struct Request {
     Request(const scoped_refptr<net::X509Certificate>& certificate,
-            const absl::optional<AccountId>& authenticating_user_account_id,
+            const std::optional<AccountId>& authenticating_user_account_id,
             net::SSLPrivateKey::SignCallback callback);
     Request(Request&& other);
     Request& operator=(Request&&);
     ~Request();
 
     scoped_refptr<net::X509Certificate> certificate;
-    absl::optional<AccountId> authenticating_user_account_id;
+    std::optional<AccountId> authenticating_user_account_id;
     net::SSLPrivateKey::SignCallback callback;
   };