Update comments for kAuthServerAllowlist in both places it is defined

Bug: 1149989
Change-Id: I1f8857abde83ab07576a6a272d6918adbf712bc1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2547444Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Commit-Queue: Yann Dago <ydago@chromium.org>
Cr-Commit-Position: refs/heads/master@{#829084}

android_webview/browser/aw_browser_process.cc

@@ -29,6 +29,7 @@ const char kAuthAndroidNegotiateAccountType[] =
     "auth.android_negotiate_account_type";
 
 // Allowlist containing servers for which Integrated Authentication is enabled.
+// This pref should match |prefs::kAuthServerAllowlist|.
 const char kAuthServerAllowlist[] = "auth.server_allowlist";
 
 }  // namespace prefs

chrome/common/pref_names.cc

@@ -2008,8 +2008,7 @@ const char kDisableAuthNegotiateCnameLookup[] =
 const char kEnableAuthNegotiatePort[] = "auth.enable_negotiate_port";
 
 // Allowlist containing servers for which Integrated Authentication is enabled.
-// Note that this used to be `kAuthServerWhitelist`, hence the difference
-// between the variable name and the string value.
+// This pref should match |android_webview::prefs::kAuthServerAllowlist|.
 const char kAuthServerAllowlist[] = "auth.server_allowlist";
 
 // Allowlist containing servers Chrome is allowed to do Kerberos delegation