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

ash/aura/wm_window_aura.cc

Index: ash/aura/wm_window_aura.cc
diff --git a/ash/aura/wm_window_aura.cc b/ash/aura/wm_window_aura.cc
index 27bd930cd44025dab5b3098e25b60e9cc1dbc364..f923414d7fe790cb5b17b0c18d99b55e00e06b5e 100644
--- a/ash/aura/wm_window_aura.cc
+++ b/ash/aura/wm_window_aura.cc
@@ -248,10 +248,6 @@
   return window_->layer()->GetTargetOpacity();
 }
 
-gfx::Rect WmWindowAura::GetMinimizeAnimationTargetBoundsInScreen() const {
-  return ash::GetMinimizeAnimationTargetBoundsInScreen(window_);
-}
-
 void WmWindowAura::SetTransform(const gfx::Transform& transform) {
   window_->SetTransform(transform);
 }
@@ -281,23 +277,6 @@
   }
 
   return false;
-}
-
-SkColor WmWindowAura::GetColorProperty(WmWindowProperty key) {
-  if (key == WmWindowProperty::TOP_VIEW_COLOR)
-    return window_->GetProperty(aura::client::kTopViewColor);
-
-  NOTREACHED();
-  return 0;
-}
-
-void WmWindowAura::SetColorProperty(WmWindowProperty key, SkColor value) {
-  if (key == WmWindowProperty::TOP_VIEW_COLOR) {
-    window_->SetProperty(aura::client::kTopViewColor, value);
-    return;
-  }
-
-  NOTREACHED();
 }
 
 int WmWindowAura::GetIntProperty(WmWindowProperty key) {