Blink side of changes to enable cache clearing without a flag.

Source/web/LinkHighlight.h

Index: Source/web/LinkHighlight.h
diff --git a/Source/web/LinkHighlight.h b/Source/web/LinkHighlight.h
index 44520b89616e6517769b99ebfb06dd0503ed3238..d9d9744438304530f187dae0227ebe112046ed76 100644
--- a/Source/web/LinkHighlight.h
+++ b/Source/web/LinkHighlight.h
@@ -56,14 +56,14 @@ public:
     void updateGeometry();
 
     // WebContentLayerClient implementation.
-    virtual void paintContents(WebCanvas*, const WebRect& clipRect, WebContentLayerClient::GraphicsContextStatus) override;
-    virtual void paintContents(WebDisplayItemList*, const WebRect& clipRect, WebContentLayerClient::GraphicsContextStatus) override { }
+    virtual void paintContents(WebCanvas*, const WebRect& clipRect, WebContentLayerClient::PaintingControlSetting) override;
+    virtual void paintContents(WebDisplayItemList*, const WebRect& clipRect, WebContentLayerClient::PaintingControlSetting) override { }
 
     // WebCompositorAnimationDelegate implementation.
     virtual void notifyAnimationStarted(double monotonicTime, int group) override;
     virtual void notifyAnimationFinished(double monotonicTime, int group) override;
 
-    // LinkHighlightClient inplementation.
+    // LinkHighlightClient implementation.
     virtual void invalidate() override;
     virtual WebLayer* layer() override;
     virtual void clearCurrentGraphicsLayer() override;