Slider NG: Rename blink::LayoutSliderContainer

to LayoutSliderTrack.
Renaming files will follow.

This CL has no behavior changes.

Bug: 1040826
Change-Id: Id921157a65e70e81284ce50cbef843301d8693ec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2394980
Commit-Queue: Yoshifumi Inoue <yosin@chromium.org>
Auto-Submit: Kent Tamura <tkent@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#804697}

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

@@ -13,7 +13,7 @@ SliderTrackElement::SliderTrackElement(Document& document)
 
 LayoutObject* SliderTrackElement::CreateLayoutObject(const ComputedStyle& style,
                                                      LegacyLayout legacy) {
-  return new LayoutSliderContainer(this);
+  return new LayoutSliderTrack(this);
 }
 
 }  // namespace blink

third_party/blink/renderer/core/layout/layout_slider_container.cc

@@ -40,7 +40,7 @@
 
 namespace blink {
 
-LayoutSliderContainer::LayoutSliderContainer(SliderTrackElement* element)
+LayoutSliderTrack::LayoutSliderTrack(SliderTrackElement* element)
     : LayoutBlockFlow(element) {}
 
 inline static Decimal SliderPosition(HTMLInputElement* element) {
@@ -50,7 +50,7 @@ inline static Decimal SliderPosition(HTMLInputElement* element) {
   return step_range.ProportionFromValue(step_range.ClampValue(old_value));
 }
 
-void LayoutSliderContainer::UpdateLayout() {
+void LayoutSliderTrack::UpdateLayout() {
   auto* input = To<HTMLInputElement>(GetNode()->OwnerShadowHost());
   const bool is_vertical = !StyleRef().IsHorizontalWritingMode();
 

third_party/blink/renderer/core/layout/layout_slider_container.h

@@ -38,10 +38,9 @@ namespace blink {
 
 class SliderTrackElement;
 
-// This class should be renamed.
-class LayoutSliderContainer final : public LayoutBlockFlow {
+class LayoutSliderTrack final : public LayoutBlockFlow {
  public:
-  explicit LayoutSliderContainer(SliderTrackElement*);
+  explicit LayoutSliderTrack(SliderTrackElement*);
 
  private:
   void UpdateLayout() override;