Delete scrollCompensationAdjustment.

third_party/WebKit/public/platform/WebLayer.h

Index: third_party/WebKit/public/platform/WebLayer.h
diff --git a/third_party/WebKit/public/platform/WebLayer.h b/third_party/WebKit/public/platform/WebLayer.h
index 023ba97970c5f7120d74a400808c284429115ebd..1542ca15fc21f75bf0b7b4c5bcb3b5c73bfca192 100644
--- a/third_party/WebKit/public/platform/WebLayer.h
+++ b/third_party/WebKit/public/platform/WebLayer.h
@@ -155,18 +155,6 @@ public:
     // Scrolling
     virtual void setScrollPositionDouble(WebDoublePoint) = 0;
     virtual WebDoublePoint scrollPositionDouble() const = 0;
-    // Blink tells cc the scroll offset through setScrollPositionDouble() using
-    // floating precision but it currently can only position cc layers at integer
-    // boundary. So Blink needs to also call setScrollCompensationAdjustment()
-    // to tell cc what's the part of the scroll offset that Blink doesn't handle
-    // but cc needs to take into consideration, e.g. compensating
-    // for fixed-position layer that's positioned in Blink using only integer scroll
-    // offset.
-    // We make this call explicit, instead of letting cc to infer the fractional part
-    // from the scroll offset, to be clear that this is Blink's limitation. Once
-    // Blink can fully handle fractional scroll offset, it can stop calling
-    // this function and cc side would just work.
-    virtual void setScrollCompensationAdjustment(WebDoublePoint) = 0;
 
     // To set a WebLayer as scrollable we must specify the corresponding clip layer.
     virtual void setScrollClipLayer(WebLayer*) = 0;