Remove use of WebNode/WebElement in translate_helper

third_party/WebKit/Source/web/WebLanguageDetectionDetails.cpp

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "public/web/WebLanguageDetectionDetails.h"
+
+#include "core/dom/Document.h"
+#include "core/dom/Element.h"
+#include "core/dom/ElementTraversal.h"
+#include "core/html/HTMLHeadElement.h"
+#include "core/html/HTMLMetaElement.h"
+#include "public/web/WebDocument.h"
+
+namespace blink {
+
+namespace {
+
+const AtomicString& documentLanguage(const Document& document) {
+  Element* htmlElement = document.documentElement();
+  if (!htmlElement)
+    return nullAtom;
+  return htmlElement->getAttribute(HTMLNames::langAttr);
+}
+
+bool hasNoTranslate(const Document& document) {
+  DEFINE_STATIC_LOCAL(const AtomicString, google, ("google"));
+
+  HTMLHeadElement* headElement = document.head();
+  if (!headElement)
+    return false;
+
+  for (const HTMLMetaElement& metaElement :
+       Traversal<HTMLMetaElement>::childrenOf(*headElement)) {
+    if (metaElement.name() != google)
+      continue;
+
+    // Check if the tag contains content="notranslate" or value="notranslate"
+    AtomicString content = metaElement.content();
+    if (content.isNull())
+      content = metaElement.getAttribute(HTMLNames::valueAttr);
+    if (equalIgnoringASCIICase(content, "notranslate"))
+      return true;
+  }
+
+  return false;
+}
+
+}  // namespace
+
+WebLanguageDetectionDetails
+WebLanguageDetectionDetails::collectLanguageDetectionDetails(
+    const WebDocument& webDocument) {
+  const Document* document = webDocument.constUnwrap<Document>();
+
+  WebLanguageDetectionDetails details;
+  details.contentLanguage = document->contentLanguage();
+  details.htmlLanguage = documentLanguage(*document);
+  details.url = document->url();
+  details.hasNoTranslateMeta = hasNoTranslate(*document);
+
+  return details;
+}
+
+}  // namespace blink