Converts DockedWindowLayoutManager to common ash/wm types

ash/wm/aura/wm_root_window_controller_aura.h

Index: ash/wm/aura/wm_root_window_controller_aura.h
diff --git a/ash/wm/aura/wm_root_window_controller_aura.h b/ash/wm/aura/wm_root_window_controller_aura.h
index cde5d7ef797aedd5e5b2d7ceec39bcef2e6b8f93..3896b61ff6b2beca32b42f80287dd400acf25696 100644
--- a/ash/wm/aura/wm_root_window_controller_aura.h
+++ b/ash/wm/aura/wm_root_window_controller_aura.h
@@ -36,6 +36,10 @@ class ASH_EXPORT WmRootWindowControllerAura : public WmRootWindowController {
   WmGlobals* GetGlobals() override;
   WorkspaceWindowState GetWorkspaceWindowState() override;
   WmWindow* GetWindow() override;
+  void ConfigureWidgetInitParamsForContainer(
+      views::Widget* widget,
+      int shell_container_id,
+      views::Widget::InitParams* init_params) override;
 
  private:
   RootWindowController* root_window_controller_;