Reland of [ash-md] Fades overview header in and out

ash/common/frame/header_view.cc

Index: ash/common/frame/header_view.cc
diff --git a/ash/common/frame/header_view.cc b/ash/common/frame/header_view.cc
index 1f015ade4a9b6ba622318b71c3d5968a4997dca3..11f0b75811c88f13636952f80df25c0c8d278e69 100644
--- a/ash/common/frame/header_view.cc
+++ b/ash/common/frame/header_view.cc
@@ -94,6 +94,14 @@ void HeaderView::SetFrameColors(SkColor active_frame_color,
   header_painter_->SetFrameColors(active_frame_color, inactive_frame_color);
 }
 
+SkColor HeaderView::GetActiveFrameColor() const {
+  return header_painter_->GetActiveFrameColor();
+}
+
+SkColor HeaderView::GetInactiveFrameColor() const {
+  return header_painter_->GetInactiveFrameColor();
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // HeaderView, views::View overrides: