Migrate DeprecatedEqual to EqualASCII for all other ASCII literals

This CL migrates the remaining comparisons involving an ASCII literal
from DeprecatedEqualIgnoringCase to EqualIgnoringASCIICase (except the
comparisons being reviewed under <https://crrev.com/c/2106983>).

These changes are potentially author-facing, but I’ve optimistically
made them without any additional tests based on Rick Byers’ reasoning
on blink-dev [1]. Please let me know if that’s not sufficient here.

The engine changes are a curated subset of the following replacement
under Sublime Text 2 (PCRE):

Find:           (?x-i)
                (?<escape>\\['"?\\abfnrtv]){0}
                (?<literal>"(?:(?=[ -~])[^"]|(?&escape))*"){0}
                (?<any>(?:[^(),]|(\((?:[^()]*|(?-1))\)))*+){0}
                DeprecatedEqualIgnoringCase
                (\s*\(\s*+(?:
                    (?&literal)\s*,\s*+(?&any)
                    |(?&any)\s*,\s*+(?&literal)
                )\s*\))
Where:          *.cc,-/path/to/src/out/*,-/path/to/src/.clangd/*
Replace:        EqualIgnoringASCIICase$5

[1] https://groups.google.com/a/chromium.org/d/msg/blink-dev/sFOpNuQ91UU/3u1HxbnQCQAJ

Change-Id: If6e1963da8128e3044df38f1924d98089e7d215a
Bug: 627682
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108441
Commit-Queue: Delan Azabani <dazabani@igalia.com>
Reviewed-by: Yoav Weiss <yoavweiss@chromium.org>
Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751346}

third_party/blink/renderer/core/html/parser/html_construction_site.cc

@@ -572,16 +572,15 @@ void HTMLConstructionSite::SetCompatibilityModeFromDoctype(
           "-//W3C//DTD HTML Experimental 970421//") ||
       public_id.StartsWithIgnoringASCIICase("-//W3C//DTD W3 HTML//") ||
       public_id.StartsWithIgnoringASCIICase("-//W3O//DTD W3 HTML 3.0//") ||
-      DeprecatedEqualIgnoringCase(public_id,
-                                  "-//W3O//DTD W3 HTML Strict 3.0//EN//") ||
+      EqualIgnoringASCIICase(public_id,
+                             "-//W3O//DTD W3 HTML Strict 3.0//EN//") ||
       public_id.StartsWithIgnoringASCIICase(
           "-//WebTechs//DTD Mozilla HTML 2.0//") ||
       public_id.StartsWithIgnoringASCIICase(
           "-//WebTechs//DTD Mozilla HTML//") ||
-      DeprecatedEqualIgnoringCase(public_id,
-                                  "-/W3C/DTD HTML 4.0 Transitional/EN") ||
+      EqualIgnoringASCIICase(public_id, "-/W3C/DTD HTML 4.0 Transitional/EN") ||
       EqualIgnoringASCIICase(public_id, "HTML") ||
-      DeprecatedEqualIgnoringCase(
+      EqualIgnoringASCIICase(
           system_id,
           "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd") ||
       (system_id.IsEmpty() && public_id.StartsWithIgnoringASCIICase(

third_party/blink/renderer/core/loader/document_loader.cc

@@ -541,7 +541,7 @@ void DocumentLoader::SetHistoryItemStateForCommit(
   history_item_->SetURL(UrlForHistory());
   history_item_->SetReferrer(SecurityPolicy::GenerateReferrer(
       referrer_.referrer_policy, history_item_->Url(), referrer_.referrer));
-  if (DeprecatedEqualIgnoringCase(http_method_, "POST")) {
+  if (EqualIgnoringASCIICase(http_method_, "POST")) {
     // FIXME: Eventually we have to make this smart enough to handle the case
     // where we have a stream for the body to handle the "data interspersed with
     // files" feature.
@@ -1255,7 +1255,7 @@ void DocumentLoader::StartLoadingInternal() {
 
   loading_mhtml_archive_ =
       EqualIgnoringASCIICase("multipart/related", response_.MimeType()) ||
-      DeprecatedEqualIgnoringCase("message/rfc822", response_.MimeType());
+      EqualIgnoringASCIICase("message/rfc822", response_.MimeType());
   if (loading_mhtml_archive_) {
     // To commit an mhtml archive synchronously we have to load the whole body
     // synchronously and parse it, and it's already loaded in a buffer usually.

third_party/blink/renderer/core/loader/form_submission.cc

@@ -108,7 +108,7 @@ void FormSubmission::Attributes::UpdateEncodingType(const String& type) {
 
 FormSubmission::SubmitMethod FormSubmission::Attributes::ParseMethodType(
     const String& type) {
-  if (DeprecatedEqualIgnoringCase(type, "post"))
+  if (EqualIgnoringASCIICase(type, "post"))
     return FormSubmission::kPostMethod;
   if (EqualIgnoringASCIICase(type, "dialog"))
     return FormSubmission::kDialogMethod;

third_party/blink/renderer/core/loader/resource/css_style_sheet_resource.cc

@@ -207,9 +207,9 @@ bool CSSStyleSheetResource::CanUseSheet(const CSSParserContext* parser_context,
     return true;
   AtomicString content_type = HttpContentType();
   return content_type.IsEmpty() ||
-         DeprecatedEqualIgnoringCase(content_type, "text/css") ||
-         DeprecatedEqualIgnoringCase(content_type,
-                                     "application/x-unknown-content-type");
+         EqualIgnoringASCIICase(content_type, "text/css") ||
+         EqualIgnoringASCIICase(content_type,
+                                "application/x-unknown-content-type");
 }
 
 StyleSheetContents* CSSStyleSheetResource::CreateParsedStyleSheetFromCache(

third_party/blink/renderer/core/loader/text_resource_decoder_builder.cc

@@ -91,7 +91,7 @@ static const WTF::TextEncoding GetEncodingFromDomain(const KURL& url) {
 
 TextResourceDecoderOptions::ContentType DetermineContentType(
     const String& mime_type) {
-  if (DeprecatedEqualIgnoringCase(mime_type, "text/css"))
+  if (EqualIgnoringASCIICase(mime_type, "text/css"))
     return TextResourceDecoderOptions::kCSSContent;
   if (EqualIgnoringASCIICase(mime_type, "text/html"))
     return TextResourceDecoderOptions::kHTMLContent;

third_party/blink/web_tests/external/wpt/html/dom/reflection-forms-expected.txt

-This is a testharness.js-based test.
-Found 8087 tests; 8081 PASS, 6 FAIL, 0 TIMEOUT, 0 NOTRUN.
-PASS form.title: 38 tests
-PASS form.lang: 38 tests
-PASS form.dir: 68 tests
-PASS form.className (<form class>): 38 tests
-PASS form.autofocus: 39 tests
-PASS form.hidden: 39 tests
-PASS form.accessKey: 38 tests
-PASS form.tabIndex: 26 tests
-PASS form.acceptCharset (<form accept-charset>): 38 tests
-PASS form.action: 44 tests
-PASS form.autocomplete: 58 tests
-PASS form.enctype: 68 tests
-PASS form.encoding (<form enctype>): 68 tests
-PASS form.method: 30 tests
-FAIL form.method: setAttribute() to "poſt" assert_equals: IDL get expected "get" but got "post"
-PASS form.method: 33 tests
-FAIL form.method: IDL set to "poſt" assert_equals: IDL get expected "get" but got "post"
-PASS form.method: 5 tests
-PASS form.name: 38 tests
-PASS form.noValidate: 39 tests
-PASS form.target: 38 tests
-PASS fieldset.title: 38 tests
-PASS fieldset.lang: 38 tests
-PASS fieldset.dir: 68 tests
-PASS fieldset.className (<fieldset class>): 38 tests
-PASS fieldset.autofocus: 39 tests
-PASS fieldset.hidden: 39 tests
-PASS fieldset.accessKey: 38 tests
-PASS fieldset.tabIndex: 26 tests
-PASS fieldset.disabled: 39 tests
-PASS fieldset.name: 38 tests
-PASS legend.title: 38 tests
-PASS legend.lang: 38 tests
-PASS legend.dir: 68 tests
-PASS legend.className (<legend class>): 38 tests
-PASS legend.autofocus: 39 tests
-PASS legend.hidden: 39 tests
-PASS legend.accessKey: 38 tests
-PASS legend.tabIndex: 26 tests
-PASS legend.align: 38 tests
-PASS label.title: 38 tests
-PASS label.lang: 38 tests
-PASS label.dir: 68 tests
-PASS label.className (<label class>): 38 tests
-PASS label.autofocus: 39 tests
-PASS label.hidden: 39 tests
-PASS label.accessKey: 38 tests
-PASS label.tabIndex: 26 tests
-PASS label.htmlFor (<label for>): 38 tests
-PASS input.title: 38 tests
-PASS input.lang: 38 tests
-PASS input.dir: 68 tests
-PASS input.className (<input class>): 38 tests
-PASS input.autofocus: 39 tests
-PASS input.hidden: 39 tests
-PASS input.accessKey: 38 tests
-PASS input.tabIndex: 26 tests
-PASS input.accept: 38 tests
-PASS input.alt: 38 tests
-PASS input.autocomplete: 19 tests
-PASS input.defaultChecked (<input checked>): 39 tests
-PASS input.dirName: 38 tests
-PASS input.disabled: 39 tests
-PASS input.formAction: 44 tests
-PASS input.formEnctype: 68 tests
-PASS input.formMethod: 30 tests
-FAIL input.formMethod: setAttribute() to "poſt" assert_equals: IDL get expected "get" but got "post"
-PASS input.formMethod: 28 tests
-FAIL input.formMethod: IDL set to "poſt" assert_equals: IDL get expected "get" but got "post"
-PASS input.formNoValidate: 39 tests
-PASS input.formTarget: 38 tests
-PASS input.height: 8 tests
-PASS input.max: 38 tests
-PASS input.maxLength: 64 tests
-PASS input.min: 38 tests
-PASS input.minLength: 64 tests
-PASS input.multiple: 39 tests
-PASS input.name: 38 tests
-PASS input.pattern: 38 tests
-PASS input.placeholder: 38 tests
-PASS input.readOnly: 39 tests
-PASS input.required: 39 tests
-PASS input.size: 62 tests
-PASS input.src: 44 tests
-PASS input.step: 38 tests
-PASS input.type: 270 tests
-PASS input.width: 8 tests
-PASS input.defaultValue (<input value>): 38 tests
-PASS input.align: 38 tests
-PASS input.useMap: 38 tests
-PASS button.title: 38 tests
-PASS button.lang: 38 tests
-PASS button.dir: 68 tests
-PASS button.className (<button class>): 38 tests
-PASS button.autofocus: 39 tests
-PASS button.hidden: 39 tests
-PASS button.accessKey: 38 tests
-PASS button.tabIndex: 26 tests
-PASS button.disabled: 39 tests
-PASS button.formAction: 44 tests
-PASS button.formEnctype: 68 tests
-PASS button.formMethod: 30 tests
-FAIL button.formMethod: setAttribute() to "poſt" assert_equals: IDL get expected "get" but got "post"
-PASS button.formMethod: 33 tests
-FAIL button.formMethod: IDL set to "poſt" assert_equals: IDL get expected "get" but got "post"
-PASS button.formMethod: 5 tests
-PASS button.formNoValidate: 39 tests
-PASS button.formTarget: 38 tests
-PASS button.name: 38 tests
-PASS button.type: 72 tests
-PASS button.value: 38 tests
-PASS select.title: 38 tests
-PASS select.lang: 38 tests
-PASS select.dir: 68 tests
-PASS select.className (<select class>): 38 tests
-PASS select.autofocus: 39 tests
-PASS select.hidden: 39 tests
-PASS select.accessKey: 38 tests
-PASS select.tabIndex: 26 tests
-PASS select.autocomplete: 19 tests
-PASS select.disabled: 39 tests
-PASS select.multiple: 39 tests
-PASS select.name: 38 tests
-PASS select.required: 39 tests
-PASS select.size: 65 tests
-PASS datalist.title: 38 tests
-PASS datalist.lang: 38 tests
-PASS datalist.dir: 68 tests
-PASS datalist.className (<datalist class>): 38 tests
-PASS datalist.autofocus: 39 tests
-PASS datalist.hidden: 39 tests
-PASS datalist.accessKey: 38 tests
-PASS datalist.tabIndex: 26 tests
-PASS optgroup.title: 38 tests
-PASS optgroup.lang: 38 tests
-PASS optgroup.dir: 68 tests
-PASS optgroup.className (<optgroup class>): 38 tests
-PASS optgroup.autofocus: 39 tests
-PASS optgroup.hidden: 39 tests
-PASS optgroup.accessKey: 38 tests
-PASS optgroup.tabIndex: 26 tests
-PASS optgroup.disabled: 39 tests
-PASS optgroup.label: 38 tests
-PASS option.title: 38 tests
-PASS option.lang: 38 tests
-PASS option.dir: 68 tests
-PASS option.className (<option class>): 38 tests
-PASS option.autofocus: 39 tests
-PASS option.hidden: 39 tests
-PASS option.accessKey: 38 tests
-PASS option.tabIndex: 26 tests
-PASS option.disabled: 39 tests
-PASS option.label: 19 tests
-PASS option.defaultSelected (<option selected>): 39 tests
-PASS option.value: 19 tests
-PASS textarea.title: 38 tests
-PASS textarea.lang: 38 tests
-PASS textarea.dir: 68 tests
-PASS textarea.className (<textarea class>): 38 tests
-PASS textarea.autofocus: 39 tests
-PASS textarea.hidden: 39 tests
-PASS textarea.accessKey: 38 tests
-PASS textarea.tabIndex: 26 tests
-PASS textarea.autocomplete: 19 tests
-PASS textarea.cols: 62 tests
-PASS textarea.dirName: 38 tests
-PASS textarea.disabled: 39 tests
-PASS textarea.maxLength: 64 tests
-PASS textarea.minLength: 64 tests
-PASS textarea.name: 38 tests
-PASS textarea.placeholder: 38 tests
-PASS textarea.readOnly: 39 tests
-PASS textarea.required: 39 tests
-PASS textarea.rows: 62 tests
-PASS textarea.wrap: 38 tests
-PASS output.title: 38 tests
-PASS output.lang: 38 tests
-PASS output.dir: 68 tests
-PASS output.className (<output class>): 38 tests
-PASS output.autofocus: 39 tests
-PASS output.hidden: 39 tests
-PASS output.accessKey: 38 tests
-PASS output.tabIndex: 26 tests
-PASS output.name: 38 tests
-PASS progress.title: 38 tests
-PASS progress.lang: 38 tests
-PASS progress.dir: 68 tests
-PASS progress.className (<progress class>): 38 tests
-PASS progress.autofocus: 39 tests
-PASS progress.hidden: 39 tests
-PASS progress.accessKey: 38 tests
-PASS progress.tabIndex: 26 tests
-PASS meter.title: 38 tests
-PASS meter.lang: 38 tests
-PASS meter.dir: 68 tests
-PASS meter.className (<meter class>): 38 tests
-PASS meter.autofocus: 39 tests
-PASS meter.hidden: 39 tests
-PASS meter.accessKey: 38 tests
-PASS meter.tabIndex: 26 tests
-PASS meter.value: 7 tests
-PASS meter.min: 7 tests
-PASS meter.max: 7 tests
-PASS meter.low: 7 tests
-PASS meter.high: 7 tests
-PASS meter.optimum: 7 tests
-Harness: the test ran to completion.
-