chromeos: fix focus for mushrome

ash/shell_port.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_SHELL_PORT_H_
 #define ASH_SHELL_PORT_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 194 matching lines @@
   // Enable or disable the partial magnifier.
   virtual void SetPartialMagnifierEnabled(bool enabled) = 0;
 
   virtual void CreatePointerWatcherAdapter() = 0;
 
   // Creates an AshWindowTreeHost. A return value of null results in a platform
   // specific AshWindowTreeHost being created.
   virtual std::unique_ptr<AshWindowTreeHost> CreateAshWindowTreeHost(
       const AshWindowTreeHostInitParams& init_params) = 0;
 
+  // Called after the containers of |root_window_controller| have been created.
+  // Allows ShellPort to install any additional state on the containers.
+  virtual void OnCreatedRootWindowContainers(
+      RootWindowController* root_window_controller) = 0;
+
  protected:
   ShellPort();
 
   // Called during startup to create the primary WindowTreeHost and
   // the corresponding RootWindowController.
   virtual void CreatePrimaryHost() = 0;
   virtual void InitHosts(const ShellInitParams& init_params) = 0;
   virtual std::unique_ptr<display::NativeDisplayDelegate>
   CreateNativeDisplayDelegate() = 0;
 
   // Called during startup to create the AcceleratorController.
   virtual std::unique_ptr<AcceleratorController>
   CreateAcceleratorController() = 0;
 
  private:
   friend class AcceleratorControllerTest;
   friend class Shell;
 
   static ShellPort* instance_;
 
   base::ObserverList<LockStateObserver> lock_state_observers_;
 
   bool simulate_modal_window_open_for_testing_ = false;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_PORT_H_