Makes windowmanager draw non-client area

ui/views/mus/native_widget_mus.h

 // Copyright 2015 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 UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_
 #define UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "components/mus/public/interfaces/window_manager.mojom.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/views/widget/native_widget_private.h"
 
 namespace aura {
 namespace client {
 class DefaultCaptureClient;
 }
 class Window;
 }
 
 namespace mojo {
 class Shell;
 }
 
 namespace mus {
 class Window;
+
+namespace mojom {
+class WindowManager;
+}
 }
 
 namespace wm {
 class FocusController;
 }
 
 namespace views {
+struct WindowManagerClientAreaInsets;
 class WindowTreeHostMus;
 
 // An implementation of NativeWidget that binds to a mus::Window. Because Aura
 // is used extensively within Views code, this code uses aura and binds to the
 // mus::Window via a Mus-specific aura::WindowTreeHost impl. Because the root
 // aura::Window in a hierarchy is created without a delegate by the
 // aura::WindowTreeHost, we must create a child aura::Window in this class
 // (content_) and attach it to the root.
 class NativeWidgetMus : public internal::NativeWidgetPrivate,
                         public aura::WindowDelegate {
  public:
   NativeWidgetMus(internal::NativeWidgetDelegate* delegate,
                   mojo::Shell* shell,
                   mus::Window* window,
                   mus::mojom::SurfaceType surface_type);
   ~NativeWidgetMus() override;
 
+  // Sets the insets for the client area. These values come from the window
+  // manager.
+  static void SetWindowManagerClientAreaInsets(
+      const WindowManagerClientAreaInsets& insets);
+
+  mus::Window* window() { return window_; }
+
+ protected:
+  // internal::NativeWidgetPrivate:
+  NonClientFrameView* CreateNonClientFrameView() override;
+
  private:
   void UpdateClientAreaInWindowManager();
 
   // internal::NativeWidgetPrivate:
   void InitNativeWidget(const Widget::InitParams& params) override;
-  NonClientFrameView* CreateNonClientFrameView() override;
   bool ShouldUseNativeFrame() const override;
   bool ShouldWindowContentsBeTransparent() const override;
   void FrameTypeChanged() override;
   Widget* GetWidget() override;
   const Widget* GetWidget() const override;
   gfx::NativeView GetNativeView() const override;
   gfx::NativeWindow GetNativeWindow() const override;
   Widget* GetTopLevelWidget() override;
   const ui::Compositor* GetCompositor() const override;
   const ui::Layer* GetLayer() const override;
@@ skipping 111 matching lines @@
   aura::Window* content_;
   scoped_ptr<wm::FocusController> focus_client_;
   scoped_ptr<aura::client::DefaultCaptureClient> capture_client_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetMus);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_