Fills athena background always.

athena/util/fill_layout_manager.h

 // Copyright 2014 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.
 
 #ifndef ATHENA_UTIL_FILL_LAYOUT_MANAGER_H_
 #define ATHENA_UTIL_FILL_LAYOUT_MANAGER_H_
 
 #include "athena/athena_export.h"
 #include "ui/aura/layout_manager.h"
 
+namespace aura {
+template <typename T>
+struct WindowProperty;
+}
+
 namespace athena {
 
+// A property key for FillLayoutManager; FillLayoutManager always fills the
+// window when this key is set to true regardless of the window type. The
+// default value is false.
+ATHENA_EXPORT extern const aura::WindowProperty<bool>* const
+    kAlwaysFillWindowKey;
+
 class ATHENA_EXPORT FillLayoutManager : public aura::LayoutManager {
  public:
   explicit FillLayoutManager(aura::Window* container);
   ~FillLayoutManager() override;
 

[oshima, 2014/11/10 22:11:49]

can you add static method 

static void SetAlwaysFill(aura::Window* window), and
hide property in .cc ?

[Jun Mukai, 2014/11/10 22:39:02]

Done.

   // aura::LayoutManager:
   virtual void OnWindowResized() override;
   virtual void OnWindowAddedToLayout(aura::Window* child) override;
   virtual void OnWillRemoveWindowFromLayout(aura::Window* child) override;
   virtual void OnWindowRemovedFromLayout(aura::Window* child) override;
   virtual void OnChildWindowVisibilityChanged(aura::Window* child,
                                               bool visible) override;
   virtual void SetChildBounds(aura::Window* child,
                               const gfx::Rect& requested_bounds) override;
 
  private:
   aura::Window* container_;
 
   DISALLOW_COPY_AND_ASSIGN(FillLayoutManager);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_UTIL_FILL_LAYOUT_MANAGER_H_