Remove the 2-level input method system & InputMethodBridge.

ui/views/ime/input_method_base.h

-// Copyright (c) 2011 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 UI_VIEWS_IME_INPUT_METHOD_BASE_H_
-#define UI_VIEWS_IME_INPUT_METHOD_BASE_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "ui/views/focus/focus_manager.h"
-#include "ui/views/ime/input_method.h"
-#include "ui/views/ime/input_method_delegate.h"
-
-namespace gfx {
-class Rect;
-}
-
-namespace ui {
-class KeyEvent;
-}
-
-namespace views {
-
-// A helper that provides functionality shared by InputMethod implementations.
-class VIEWS_EXPORT InputMethodBase : public InputMethod,
-                                     public FocusChangeListener {
- public:
-  InputMethodBase();
-  ~InputMethodBase() override;
-
-  // Overridden from InputMethod.
-  void SetDelegate(internal::InputMethodDelegate* delegate) override;
-  void Init(Widget* widget) override;
-  void OnTextInputTypeChanged(View* view) override;
-  ui::TextInputClient* GetTextInputClient() const override;
-  ui::TextInputType GetTextInputType() const override;
-
-  // Overridden from FocusChangeListener.
-  void OnWillChangeFocus(View* focused_before, View* focused) override;
-  void OnDidChangeFocus(View* focused_before, View* focused) override;
-
- protected:
-  internal::InputMethodDelegate* delegate() const { return delegate_; }
-  Widget* widget() const { return widget_; }
-  View* GetFocusedView() const;
-
-  // Returns true only if the View is focused and its Widget is active.
-  bool IsViewFocused(View* view) const;
-
-  // Returns true if there is no focused text input client or its type is none.
-  bool IsTextInputTypeNone() const;
-
-  // Calls the focused text input client's OnInputMethodChanged() method.
-  // This has no effect if the text input type is ui::TEXT_INPUT_TYPE_NONE.
-  void OnInputMethodChanged() const;
-
-  // Convenience method to call delegate_->DispatchKeyEventPostIME().
-  void DispatchKeyEventPostIME(const ui::KeyEvent& key) const;
-
-  // Gets the current text input client's caret bounds in Widget's coordinates.
-  // Returns false if the current text input client doesn't support text input.
-  bool GetCaretBoundsInWidget(gfx::Rect* rect) const;
-
-  // Removes any state installed on |widget_| and NULLs it out. Use if the
-  // widget is in a state such that it should no longer be used (such as when
-  // this is in its destructor).
-  void DetachFromWidget();
-
- private:
-  internal::InputMethodDelegate* delegate_;
-  Widget* widget_;
-
-  DISALLOW_COPY_AND_ASSIGN(InputMethodBase);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_IME_INPUT_METHOD_BASE_H_