Purge the ScrollBlocksOn code.

cc/blink/web_layer_impl.cc

Index: cc/blink/web_layer_impl.cc
diff --git a/cc/blink/web_layer_impl.cc b/cc/blink/web_layer_impl.cc
index cd1033845a2eb042d5396fd056c297e45e21b25c..335861ecb9a4459b3ea49576cd1bf6bc352653df 100644
--- a/cc/blink/web_layer_impl.cc
+++ b/cc/blink/web_layer_impl.cc
@@ -431,28 +431,6 @@ WebVector<WebRect> WebLayerImpl::touchEventHandlerRegion() const {
   return result;
 }
 
-static_assert(static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnNone) ==
-                  SCROLL_BLOCKS_ON_NONE,
-              "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-static_assert(static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnStartTouch) ==
-                  SCROLL_BLOCKS_ON_START_TOUCH,
-              "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-static_assert(static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnWheelEvent) ==
-                  SCROLL_BLOCKS_ON_WHEEL_EVENT,
-              "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-static_assert(
-    static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnScrollEvent) ==
-        SCROLL_BLOCKS_ON_SCROLL_EVENT,
-    "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-
-void WebLayerImpl::setScrollBlocksOn(blink::WebScrollBlocksOn blocks) {
-  layer_->SetScrollBlocksOn(static_cast<ScrollBlocksOn>(blocks));
-}
-
-blink::WebScrollBlocksOn WebLayerImpl::scrollBlocksOn() const {
-  return static_cast<blink::WebScrollBlocksOn>(layer_->scroll_blocks_on());
-}
-
 void WebLayerImpl::setIsContainerForFixedPositionLayers(bool enable) {
   layer_->SetIsContainerForFixedPositionLayers(enable);
 }