Enable LayoutNG for <meter>

This CL should have no behavior changes.

Bug: 1040826
Change-Id: Ib240a84ea0eb1beed19e61acf4a3ce5dfa7e44db
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2002037Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#731857}

third_party/blink/renderer/core/html/html_meter_element.h

@@ -71,7 +71,6 @@ class CORE_EXPORT HTMLMeterElement final : public HTMLElement {
   bool AreAuthorShadowsAllowed() const override { return false; }
 
   bool IsLabelable() const override { return true; }
-  bool TypeShouldForceLegacyLayout() const final { return true; }
 
   LayoutObject* CreateLayoutObject(const ComputedStyle&, LegacyLayout) override;
   void ParseAttribute(const AttributeModificationParams&) override;