Remove the 2-level input method system & InputMethodBridge.

ui/views/view.h

 // Copyright (c) 2012 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_VIEW_H_
 #define UI_VIEWS_VIEW_H_
 
 #include <algorithm>
 #include <map>
 #include <set>
@@ skipping 32 matching lines @@
 namespace gfx {
 class Canvas;
 class Insets;
 class Path;
 class Transform;
 }
 
 namespace ui {
 struct AXViewState;
 class Compositor;
+class InputMethod;
 class Layer;
 class NativeTheme;
 class PaintContext;
 class TextInputClient;
 class Texture;
 class ThemeProvider;
 }
 
 namespace views {
 
 class Background;
 class Border;
 class ContextMenuController;
 class DragController;
 class FocusManager;
 class FocusTraversable;
-class InputMethod;
 class LayoutManager;
 class NativeViewAccessibility;
 class ScrollView;
 class Widget;
 
 namespace internal {
 class PreEventDispatchHandler;
 class PostEventDispatchHandler;
 class RootView;
 }
@@ skipping 605 matching lines @@
 
 
   // See field for description.
   void set_notify_enter_exit_on_child(bool notify) {
     notify_enter_exit_on_child_ = notify;
   }
   bool notify_enter_exit_on_child() const {
     return notify_enter_exit_on_child_;
   }
 
-  // Returns the View's TextInputClient instance or NULL if the View doesn't
-  // support text input.
-  virtual ui::TextInputClient* GetTextInputClient();
-
   // Convenience method to retrieve the InputMethod associated with the
-  // Widget that contains this view. Returns NULL if this view is not part of a
-  // view hierarchy with a Widget.
-  virtual InputMethod* GetInputMethod();
-  virtual const InputMethod* GetInputMethod() const;
+  // Widget that contains this view.
+  ui::InputMethod* GetInputMethod();

[sky, 2015/06/30 16:32:31]

Inline this one and call to the const version. See the const_casts in this
header for examples (eg GetNativeTheme).

[Shu Chen, 2015/07/01 02:38:57]

Done.

+  const ui::InputMethod* GetInputMethod() const;
 
   // Sets a new ViewTargeter for the view, and returns the previous
   // ViewTargeter.
   scoped_ptr<ViewTargeter> SetEventTargeter(scoped_ptr<ViewTargeter> targeter);
 
   // Returns the ViewTargeter installed on |this| if one exists,
   // otherwise returns the ViewTargeter installed on our root view.
   // The return value is guaranteed to be non-null.
   ViewTargeter* GetEffectiveViewTargeter() const;
 
@@ skipping 852 matching lines @@
   // Belongs to this view, but it's reference-counted on some platforms
   // so we can't use a scoped_ptr. It's dereferenced in the destructor.
   NativeViewAccessibility* native_view_accessibility_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEW_H_