mash: Add WmShell::SetDisplayWorkAreaInsets for ShelfLayoutManager.

ash/mus/bridge/wm_shell_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_shell_mus.h"
 
 #include <utility>
 
 #include "ash/common/accelerators/accelerator_controller.h"
 #include "ash/common/display/display_info.h"
@@ skipping 222 matching lines @@
 bool WmShellMus::IsInUnifiedMode() const {
   // TODO(mash): implement http://crbug.com/622480.
   return false;
 }
 
 bool WmShellMus::IsForceMaximizeOnFirstRun() {
   NOTIMPLEMENTED();
   return false;
 }
 
+void WmShellMus::SetDisplayWorkAreaInsets(WmWindow* window,
+                                          const gfx::Insets& insets) {
+  NOTIMPLEMENTED();
+}
+
 bool WmShellMus::IsPinned() {
   NOTIMPLEMENTED();
   return false;
 }
 
 void WmShellMus::SetPinnedWindow(WmWindow* window) {
   NOTIMPLEMENTED();
 }
 
 bool WmShellMus::CanShowWindowForUser(WmWindow* window) {
@@ skipping 145 matching lines @@
                     OnWindowActivated(gained_active, lost_active));
 }
 
 void WmShellMus::OnDidDestroyClient(ui::WindowTreeClient* client) {
   DCHECK_EQ(window_tree_client(), client);
   client->RemoveObserver(this);
 }
 
 }  // namespace mus
 }  // namespace ash