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

ash/mus/bridge/wm_window_mus.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/mus/bridge/wm_window_mus.h"
 
 #include "ash/common/wm/container_finder.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_layout_manager.h"
 #include "ash/common/wm_transient_window_observer.h"
@@ skipping 287 matching lines @@
 
 void WmWindowMus::SetOpacity(float opacity) {
   window_->SetOpacity(opacity);
 }
 
 float WmWindowMus::GetTargetOpacity() const {
   // TODO: need animation support: http://crbug.com/615087.
   return window_->opacity();
 }
 
+gfx::Rect WmWindowMus::GetMinimizeAnimationTargetBoundsInScreen() const {
+  // TODO: need animation support: http://crbug.com/615087.
+  NOTIMPLEMENTED();
+  return GetBoundsInScreen();
+}
+
 void WmWindowMus::SetTransform(const gfx::Transform& transform) {
   // TODO: mus needs to support transforms: http://crbug.com/615089.
   NOTIMPLEMENTED();
 }
 
 gfx::Transform WmWindowMus::GetTargetTransform() const {
   // TODO: need animation support: http://crbug.com/615087.
   return gfx::Transform();
 }
 
@@ skipping 16 matching lines @@
 
     default:
       NOTREACHED();
       break;
   }
 
   NOTREACHED();
   return false;
 }
 
+SkColor WmWindowMus::GetColorProperty(WmWindowProperty key) {
+  if (key == WmWindowProperty::TOP_VIEW_COLOR) {
+    // TODO: need support for TOP_VIEW_COLOR: http://crbug.com/615100.
+    NOTIMPLEMENTED();
+    return 0;
+  }
+
+  NOTREACHED();
+  return 0;
+}
+
+void WmWindowMus::SetColorProperty(WmWindowProperty key, SkColor value) {
+  if (key == WmWindowProperty::TOP_VIEW_COLOR) {
+    // TODO: need support for TOP_VIEW_COLOR: http://crbug.com/615100.
+    NOTIMPLEMENTED();
+    return;
+  }
+
+  NOTREACHED();
+}
+
 int WmWindowMus::GetIntProperty(WmWindowProperty key) {
   if (key == WmWindowProperty::SHELF_ID) {
     NOTIMPLEMENTED();
     return 0;
   }
 
   if (key == WmWindowProperty::TOP_VIEW_INSET) {
     // TODO: need support for TOP_VIEW_INSET: http://crbug.com/615100.
     NOTIMPLEMENTED();
     return 0;
@@ skipping 530 matching lines @@
 }
 
 void WmWindowMus::OnTransientChildRemoved(ui::Window* window,
                                           ui::Window* transient) {
   FOR_EACH_OBSERVER(WmTransientWindowObserver, transient_observers_,
                     OnTransientChildRemoved(this, Get(transient)));
 }
 
 }  // namespace mus
 }  // namespace ash