Add create note palette action.

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>
@@ skipping 109 matching lines @@
     return new_window_delegate_.get();
   }
 
   // NOTE: Prefer ScopedRootWindowForNewWindows when setting temporarily.
   void set_root_window_for_new_windows(WmWindow* root) {
     root_window_for_new_windows_ = root;
   }
 
   PaletteDelegate* palette_delegate() { return palette_delegate_.get(); }
 
+  void SetPaletteDelegateForTesting(

[James Cook, 2016/08/16 22:08:45]

nit: Move this down by SetShelfDelegateForTesting

[jdufault, 2016/08/16 22:45:52]

Ah, good. I spent some time looking for another testing function but never found
any.

+      std::unique_ptr<PaletteDelegate> palette_delegate);
+
   ShelfDelegate* shelf_delegate() { return shelf_delegate_.get(); }
 
   ShelfModel* shelf_model() { return shelf_model_.get(); }
 
   SystemTrayNotifier* system_tray_notifier() {
     return system_tray_notifier_.get();
   }
 
   SystemTrayDelegate* system_tray_delegate() {
     return system_tray_delegate_.get();
@@ skipping 273 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_