mash: Port KeyboardUIMus to mojo:ash; remove sysui.

ash/shell_init_params.h

Index: ash/shell_init_params.h
diff --git a/ash/shell_init_params.h b/ash/shell_init_params.h
index edca1f4d96e2e4756047c4b1720ce1bb7377194f..8cff2f1d9567887f8b82090d0f70789a3c9d61e4 100644
--- a/ash/shell_init_params.h
+++ b/ash/shell_init_params.h
@@ -5,16 +5,7 @@
 #ifndef ASH_SHELL_INIT_PARAMS_H_
 #define ASH_SHELL_INIT_PARAMS_H_
 
-#include <memory>
-
-#include "build/build_config.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#endif
-
 #include "ash/ash_export.h"
-#include "base/callback.h"
 
 namespace base {
 class SequencedWorkerPool;
@@ -26,26 +17,12 @@ class ContextFactory;
 
 namespace ash {
 
-class KeyboardUI;
 class ShellDelegate;
 
 struct ASH_EXPORT ShellInitParams {
-  ShellInitParams();
-  ~ShellInitParams();
-
-  ShellDelegate* delegate;
-
-  ui::ContextFactory* context_factory;
-  base::SequencedWorkerPool* blocking_pool;
-
-  // True if running inside mus.
-  bool in_mus = false;
-
-  base::Callback<std::unique_ptr<KeyboardUI>()> keyboard_factory;
-
-#if defined(OS_WIN)
-  HWND remote_hwnd;
-#endif
+  ShellDelegate* delegate = nullptr;
+  ui::ContextFactory* context_factory = nullptr;
+  base::SequencedWorkerPool* blocking_pool = nullptr;
 };
 
 }  // namespace ash