Remove scroll corners and resizers.

sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp

Index: sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
diff --git a/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp b/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
index 384a31e756cabed06d6cdc1baafd2d8fe3705fed..bc6b0fd92cbbde6a00e2c6f1aad2780492164019 100644
--- a/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
+++ b/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
@@ -629,12 +629,6 @@ bool RenderLayerCompositor::requiresVerticalScrollbarLayer() const
     return false;
 }
 
-bool RenderLayerCompositor::requiresScrollCornerLayer() const
-{
-    // FIXME(sky): Remove
-    return false;
-}
-
 void RenderLayerCompositor::updateOverflowControlsLayers()
 {
     GraphicsLayer* controlsParent = m_rootTransformLayer.get() ? m_rootTransformLayer.get() : m_overflowControlsHostLayer.get();
@@ -664,16 +658,6 @@ void RenderLayerCompositor::updateOverflowControlsLayers()
         m_layerForVerticalScrollbar->removeFromParent();
         m_layerForVerticalScrollbar = nullptr;
     }
-
-    if (requiresScrollCornerLayer()) {
-        if (!m_layerForScrollCorner) {
-            m_layerForScrollCorner = GraphicsLayer::create(graphicsLayerFactory(), this);
-            controlsParent->addChild(m_layerForScrollCorner.get());
-        }
-    } else if (m_layerForScrollCorner) {
-        m_layerForScrollCorner->removeFromParent();
-        m_layerForScrollCorner = nullptr;
-    }
 }
 
 void RenderLayerCompositor::ensureRootLayer()
@@ -743,10 +727,6 @@ void RenderLayerCompositor::destroyRootLayer()
         m_layerForVerticalScrollbar = nullptr;
     }
 
-    if (m_layerForScrollCorner) {
-        m_layerForScrollCorner = nullptr;
-    }
-
     if (m_overflowControlsHostLayer) {
         m_overflowControlsHostLayer = nullptr;
         m_containerLayer = nullptr;
@@ -849,8 +829,6 @@ String RenderLayerCompositor::debugName(const GraphicsLayer* graphicsLayer)
         name = "Horizontal Scrollbar Layer";
     } else if (graphicsLayer == m_layerForVerticalScrollbar.get()) {
         name = "Vertical Scrollbar Layer";
-    } else if (graphicsLayer == m_layerForScrollCorner.get()) {
-        name = "Scroll Corner Layer";
     } else if (graphicsLayer == m_containerLayer.get()) {
         name = "LocalFrame Clipping Layer";
     } else if (graphicsLayer == m_scrollLayer.get()) {