Bug 1650066 preparation - Add errListUnclosedStartTags for HTML tree builder error reporting. r=smaug

Differential Revision: https://phabricator.services.mozilla.com/D122597

dom/locales/en-US/chrome/layout/htmlparser.properties

@@ -129,3 +129,4 @@ errNoCheckUnclosedElementsOnStack=Unclosed elements on stack.
 errEndTagDidNotMatchCurrentOpenElement=End tag “%1$S” did not match the name of the current open element (“%2$S”).
 errEndTagViolatesNestingRules=End tag “%1$S” violates nesting rules.
 errEndWithUnclosedElements=End tag for “%1$S” seen, but there were unclosed elements.
+errListUnclosedStartTags=Unclosed element or elements.

parser/html/nsHtml5TreeBuilderCppSupplement.h

@@ -1745,3 +1745,9 @@ void nsHtml5TreeBuilder::errEndWithUnclosedElements(nsAtom* aName) {
     mViewSource->AddErrorToCurrentRun("errEndWithUnclosedElements", aName);
   }
 }
+
+void nsHtml5TreeBuilder::errListUnclosedStartTags(int32_t aIgnored) {
+  if (MOZ_UNLIKELY(mViewSource)) {
+    mViewSource->AddErrorToCurrentRun("errListUnclosedStartTags");
+  }
+}

parser/html/nsHtml5TreeBuilderHSupplement.h

@@ -233,6 +233,8 @@ void errEndTagViolatesNestingRules(nsAtom* aName);
 
 void errEndWithUnclosedElements(nsAtom* aName);
 
+void errListUnclosedStartTags(int32_t aIgnored);
+
 void MarkAsBroken(nsresult aRv);
 
 /**