Move GetDocument method from WebFrame to WebLocalFrame.

third_party/WebKit/Source/modules/exported/WebAXObject.cpp

Index: third_party/WebKit/Source/modules/exported/WebAXObject.cpp
diff --git a/third_party/WebKit/Source/modules/exported/WebAXObject.cpp b/third_party/WebKit/Source/modules/exported/WebAXObject.cpp
index 4263073d640517e561bf04f0958cc07709f3a58c..591c8f3e80dd9aeb24bb58cc6073efc4e6125eb6 100644
--- a/third_party/WebKit/Source/modules/exported/WebAXObject.cpp
+++ b/third_party/WebKit/Source/modules/exported/WebAXObject.cpp
@@ -1558,16 +1558,6 @@ WebAXObject WebAXObject::FromWebNode(const WebNode& web_node) {
   return cache ? WebAXObject(cache->Get(node)) : WebAXObject();
 }
 
-// static
-WebAXObject WebAXObject::FromWebView(WebView& web_view) {
-  auto main_frame = web_view.MainFrame();
-  if (!main_frame)
-    return WebAXObject();
-
-  Document* document = main_frame->GetDocument();
-  return WebAXObject(ToAXObjectCacheImpl(document->AxObjectCache())->Root());
-}
-
 // static
 WebAXObject WebAXObject::FromWebDocument(const WebDocument& web_document) {
   const Document* document = web_document.ConstUnwrap<Document>();