Replace remaining uses of WebScrollbar::Orientation with ScrollbarOrientation.

Bug: 841751
Change-Id: I965b442ef21d0f199574d8d4ff04fc03af7158b9
Reviewed-on: https://chromium-review.googlesource.com/1054248Reviewed-by: Philip Rogers <pdr@chromium.org>
Reviewed-by: David Bokan <bokan@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#558104}

third_party/blink/public/platform/web_scrollbar.h

@@ -30,7 +30,6 @@ namespace blink {
 // TODO(jbroman): Clean up these, which are used elsewhere.
 class WebScrollbar {
  public:
-  enum Orientation { kHorizontal, kVertical };
   enum class ScrollingMode { kAuto, kAlwaysOff, kAlwaysOn, kLast = kAlwaysOn };
 };
 

third_party/blink/renderer/core/frame/visual_viewport.cc

@@ -36,7 +36,6 @@
 #include "cc/layers/scrollbar_layer_interface.h"
 #include "third_party/blink/public/platform/task_type.h"
 #include "third_party/blink/public/platform/web_layer.h"
-#include "third_party/blink/public/platform/web_scrollbar.h"
 #include "third_party/blink/renderer/core/frame/local_frame.h"
 #include "third_party/blink/renderer/core/frame/local_frame_client.h"
 #include "third_party/blink/renderer/core/frame/local_frame_view.h"
@@ -425,8 +424,8 @@ void VisualViewport::InitializeScrollbars() {
       inner_viewport_container_layer_->AddChild(
           overlay_scrollbar_vertical_.get());
 
-    SetupScrollbar(WebScrollbar::kHorizontal);
-    SetupScrollbar(WebScrollbar::kVertical);
+    SetupScrollbar(kHorizontalScrollbar);
+    SetupScrollbar(kVerticalScrollbar);
   } else {
     overlay_scrollbar_horizontal_->RemoveFromParent();
     overlay_scrollbar_vertical_->RemoveFromParent();
@@ -440,8 +439,8 @@ void VisualViewport::InitializeScrollbars() {
     frame->View()->VisualViewportScrollbarsChanged();
 }
 
-void VisualViewport::SetupScrollbar(WebScrollbar::Orientation orientation) {
-  bool is_horizontal = orientation == WebScrollbar::kHorizontal;
+void VisualViewport::SetupScrollbar(ScrollbarOrientation orientation) {
+  bool is_horizontal = orientation == kHorizontalScrollbar;
   GraphicsLayer* scrollbar_graphics_layer =
       is_horizontal ? overlay_scrollbar_horizontal_.get()
                     : overlay_scrollbar_vertical_.get();
@@ -463,10 +462,8 @@ void VisualViewport::SetupScrollbar(WebScrollbar::Orientation orientation) {
   if (!scrollbar_layer_group) {
     ScrollingCoordinator* coordinator = GetPage().GetScrollingCoordinator();
     DCHECK(coordinator);
-    ScrollbarOrientation webcore_orientation =
-        is_horizontal ? kHorizontalScrollbar : kVerticalScrollbar;
     scrollbar_layer_group = coordinator->CreateSolidColorScrollbarLayer(
-        webcore_orientation, thumb_thickness, scrollbar_margin, false);
+        orientation, thumb_thickness, scrollbar_margin, false);
 
     // The compositor will control the scrollbar's visibility. Set to invisible
     // by default so scrollbars don't show up in layout tests.

third_party/blink/renderer/core/frame/visual_viewport.h

@@ -34,7 +34,6 @@
 #include <memory>
 
 #include "base/single_thread_task_runner.h"
-#include "third_party/blink/public/platform/web_scrollbar.h"
 #include "third_party/blink/public/platform/web_size.h"
 #include "third_party/blink/renderer/core/core_export.h"
 #include "third_party/blink/renderer/core/dom/events/event.h"
@@ -44,6 +43,7 @@
 #include "third_party/blink/renderer/platform/geometry/int_size.h"
 #include "third_party/blink/renderer/platform/graphics/compositor_element_id.h"
 #include "third_party/blink/renderer/platform/graphics/graphics_layer_client.h"
+#include "third_party/blink/renderer/platform/scroll/scroll_types.h"
 #include "third_party/blink/renderer/platform/scroll/scrollable_area.h"
 
 namespace blink {
@@ -266,7 +266,7 @@ class CORE_EXPORT VisualViewport final
                      const IntRect&) const override;
   String DebugName(const GraphicsLayer*) const override;
 
-  void SetupScrollbar(WebScrollbar::Orientation);
+  void SetupScrollbar(ScrollbarOrientation);
 
   void NotifyRootFrameViewport() const;
 

third_party/blink/renderer/platform/scroll/scrollbar.cc

@@ -642,9 +642,6 @@ STATIC_ASSERT_ENUM(WebScrollbar::ScrollingMode::kAlwaysOff,
                    kScrollbarAlwaysOff);
 STATIC_ASSERT_ENUM(WebScrollbar::ScrollingMode::kAlwaysOn, kScrollbarAlwaysOn);
 
-STATIC_ASSERT_ENUM(WebScrollbar::kHorizontal, kHorizontalScrollbar);
-STATIC_ASSERT_ENUM(WebScrollbar::kVertical, kVerticalScrollbar);
-
 STATIC_ASSERT_ENUM(kWebScrollbarOverlayColorThemeDark,
                    kScrollbarOverlayColorThemeDark);
 STATIC_ASSERT_ENUM(kWebScrollbarOverlayColorThemeLight,