Use WebNode::getElementsByHTMLTagName instead of getElementsByTagName.

components/autofill/content/renderer/form_autofill_util.cc

Index: components/autofill/content/renderer/form_autofill_util.cc
diff --git a/components/autofill/content/renderer/form_autofill_util.cc b/components/autofill/content/renderer/form_autofill_util.cc
index ce0d52689927a469fa1eecf61ca5c06e6302ca90..29b6009ed5901acb6b66e7c00196586922dea774 100644
--- a/components/autofill/content/renderer/form_autofill_util.cc
+++ b/components/autofill/content/renderer/form_autofill_util.cc
@@ -908,7 +908,7 @@ bool WebFormElementToFormData(
   // element's name as a key into the <name, FormFieldData> map to find the
   // previously created FormFieldData and set the FormFieldData's label to the
   // label.firstChild().nodeValue() of the label element.
-  WebElementCollection labels = form_element.getElementsByTagName(kLabel);
+  WebElementCollection labels = form_element.getElementsByHTMLTagName(kLabel);
   DCHECK(!labels.isNull());
   for (WebElement item = labels.firstItem(); !item.isNull();
        item = labels.nextItem()) {