Enable LayoutNG for <input type=color>

This CL should have no behavior changes.

Bug: 1040826
Change-Id: Iac5efeac96ddf437e3aa389c0669b0e19b131894
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2002268
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#732241}

third_party/blink/renderer/core/html/forms/color_input_type.cc

@@ -275,4 +275,8 @@ ColorChooserClient* ColorInputType::GetColorChooserClient() {
   return this;
 }
 
+bool ColorInputType::TypeShouldForceLegacyLayout() const {
+  return false;
+}
+
 }  // namespace blink

third_party/blink/renderer/core/html/forms/color_input_type.h

@@ -77,6 +77,7 @@ class ColorInputType final : public InputType,
   void WarnIfValueIsInvalid(const String&) const override;
   void UpdateView() override;
   AXObject* PopupRootAXObject() override;
+  bool TypeShouldForceLegacyLayout() const override;
 
   Color ValueAsColor() const;
   void EndColorChooser();