mash: Add WmShell::SetDisplayWorkAreaInsets for ShelfLayoutManager.

ash/aura/wm_shell_aura.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/aura/wm_shell_aura.h"
 
 #include <utility>
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/session/session_state_delegate.h"
@@ skipping 94 matching lines @@
 }
 
 bool WmShellAura::IsInUnifiedMode() const {
   return Shell::GetInstance()->display_manager()->IsInUnifiedMode();
 }
 
 bool WmShellAura::IsForceMaximizeOnFirstRun() {
   return delegate()->IsForceMaximizeOnFirstRun();
 }
 
+void WmShellAura::SetDisplayWorkAreaInsets(WmWindow* window,
+                                           const gfx::Insets& insets) {
+  aura::Window* aura_window = WmWindowAura::GetAuraWindow(window);
+  Shell::GetInstance()->SetDisplayWorkAreaInsets(aura_window, insets);
+}
+
 bool WmShellAura::IsPinned() {
   return Shell::GetInstance()->screen_pinning_controller()->IsPinned();
 }
 
 void WmShellAura::SetPinnedWindow(WmWindow* window) {
   return Shell::GetInstance()->screen_pinning_controller()->SetPinnedWindow(
       window);
 }
 
 bool WmShellAura::CanShowWindowForUser(WmWindow* window) {
@@ skipping 147 matching lines @@
   FOR_EACH_OBSERVER(WmDisplayObserver, display_observers_,
                     OnDisplayConfigurationChanging());
 }
 
 void WmShellAura::OnDisplayConfigurationChanged() {
   FOR_EACH_OBSERVER(WmDisplayObserver, display_observers_,
                     OnDisplayConfigurationChanged());
 }
 
 }  // namespace ash