changes for new DlMaskFilter objects (#17)

Author: flar

impeller/display_list/display_list_dispatcher.cc

@@ -120,15 +120,18 @@ void DisplayListDispatcher::setPathEffect(sk_sp<SkPathEffect> effect) {
 }
 
 // |flutter::Dispatcher|
-void DisplayListDispatcher::setMaskFilter(sk_sp<SkMaskFilter> filter) {
+void DisplayListDispatcher::setMaskFilter(const flutter::DlMaskFilter* filter) {
   // Needs https://github.com/flutter/flutter/issues/95434
-  UNIMPLEMENTED;
-}
-
-// |flutter::Dispatcher|
-void DisplayListDispatcher::setMaskBlurFilter(SkBlurStyle style,
-                                              SkScalar sigma) {
-  UNIMPLEMENTED;
+  if (filter == nullptr) {
+    // Reset everything
+    return;
+  }
+  switch (filter->type()) {
+    case flutter::DlMaskFilter::kBlur:
+    case flutter::DlMaskFilter::kUnknown:
+      UNIMPLEMENTED;
+      break;
+  }
 }
 
 // |flutter::Dispatcher|

impeller/display_list/display_list_dispatcher.h

@@ -63,10 +63,7 @@ class DisplayListDispatcher final : public flutter::Dispatcher {
   void setPathEffect(sk_sp<SkPathEffect> effect) override;
 
   // |flutter::Dispatcher|
-  void setMaskFilter(sk_sp<SkMaskFilter> filter) override;
-
-  // |flutter::Dispatcher|
-  void setMaskBlurFilter(SkBlurStyle style, SkScalar sigma) override;
+  void setMaskFilter(const flutter::DlMaskFilter* filter) override;
 
   // |flutter::Dispatcher|
   void setImageFilter(sk_sp<SkImageFilter> filter) override;