mash: Add WmShell::SetDisplayWorkAreaInsets for ShelfLayoutManager.

ash/common/wm_shell.h

 // 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.
 
 #ifndef ASH_COMMON_WM_SHELL_H_
 #define ASH_COMMON_WM_SHELL_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "ash/common/media_delegate.h"
 #include "ash/common/metrics/gesture_action_type.h"
 #include "ash/common/metrics/user_metrics_action.h"
 #include "ash/common/wm/lock_state_observer.h"
 #include "base/observer_list.h"
 #include "ui/base/ui_base_types.h"
 
 namespace display {
 class Display;
 }
 
 namespace gfx {
+class Insets;
 class Point;
 }
 
 namespace views {
 class PointerWatcher;
 }
 
 namespace ash {
 
 class AcceleratorController;
@@ skipping 145 matching lines @@
   // Returns the first display; this is the first display listed by hardware,
   // which corresponds to internal displays on devices with integrated displays.
   // TODO(mash): Remove when DisplayManager has been moved. crbug.com/622480
   virtual display::Display GetFirstDisplay() const = 0;
 
   // Returns true if the first window shown on first run should be
   // unconditionally maximized, overriding the heuristic that normally chooses
   // the window size.
   virtual bool IsForceMaximizeOnFirstRun() = 0;
 
+  // Sets work area insets of the display containing |window|, pings observers.
+  virtual void SetDisplayWorkAreaInsets(WmWindow* window,
+                                        const gfx::Insets& insets) = 0;
+
   // Returns true if a system-modal dialog window is currently open.
   bool IsSystemModalWindowOpen();
 
   // For testing only: set simulation that a modal window is open
   void SimulateModalWindowOpenForTesting(bool modal_window_open) {
     simulate_modal_window_open_for_testing_ = modal_window_open;
   }
 
   // Shows the app list on the active root window.
   void ShowAppList();
@@ skipping 190 matching lines @@
   bool simulate_modal_window_open_for_testing_ = false;
 
 #if defined(OS_CHROMEOS)
   std::unique_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 #endif
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_SHELL_H_