Rename MaximizeMode to TabletMode

ash/test/shell_test_api.h

Index: ash/test/shell_test_api.h
diff --git a/ash/test/shell_test_api.h b/ash/test/shell_test_api.h
index f1eb5d4c900cbb053d310fc6c8a17ea55c9457e7..c5e0817c481b7906c1a3ae78ca6e615ff6fe1c9b 100644
--- a/ash/test/shell_test_api.h
+++ b/ash/test/shell_test_api.h
@@ -12,7 +12,7 @@
 namespace ash {
 class AshNativeCursorManager;
 class DragDropController;
-class MaximizeModeWindowManager;
+class TabletModeWindowManager;
 class PaletteDelegate;
 class SessionStateDelegate;
 class ScreenPositionController;
@@ -33,7 +33,7 @@ class ShellTestApi {
   ScreenPositionController* screen_position_controller();
   AshNativeCursorManager* ash_native_cursor_manager();
   DragDropController* drag_drop_controller();
-  MaximizeModeWindowManager* maximize_mode_window_manager();
+  TabletModeWindowManager* tablet_mode_window_manager();
 
   void SetPaletteDelegate(std::unique_ptr<PaletteDelegate> palette_delegate);
   void SetSessionStateDelegate(SessionStateDelegate* session_state_delegate);