Move implementation of WebFilterOperations into cc

cc/layers/layer_impl.cc

Index: cc/layers/layer_impl.cc
diff --git a/cc/layers/layer_impl.cc b/cc/layers/layer_impl.cc
index eb50b61cbe12936bd9d0dfde9ac04e4b7bdef212..c9398d7ada2a52653abc16c0daeef0ae8515e77f 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -712,7 +712,7 @@ SkColor LayerImpl::SafeOpaqueBackgroundColor() const {
   return color;
 }
 
-void LayerImpl::SetFilters(const WebKit::WebFilterOperations& filters) {
+void LayerImpl::SetFilters(const FilterOperations& filters) {
   if (filters_ == filters)
     return;
 
@@ -722,7 +722,7 @@ void LayerImpl::SetFilters(const WebKit::WebFilterOperations& filters) {
 }
 
 void LayerImpl::SetBackgroundFilters(
-    const WebKit::WebFilterOperations& filters) {
+    const FilterOperations& filters) {
   if (background_filters_ == filters)
     return;
 
@@ -734,7 +734,7 @@ void LayerImpl::SetFilter(const skia::RefPtr<SkImageFilter>& filter) {
   if (filter_.get() == filter.get())
     return;
 
-  DCHECK(filters_.isEmpty());
+  DCHECK(filters_.IsEmpty());
   filter_ = filter;
   NoteLayerPropertyChangedForSubtree();
 }