Integrate the new input method API for Views into Chromium.

views/widget/native_widget.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 VIEWS_WIDGET_NATIVE_WIDGET_H_
 #define VIEWS_WIDGET_NATIVE_WIDGET_H_
 #pragma once
 
 #include <set>
 
 #include "ui/gfx/native_widget_types.h"
 
 namespace gfx {
 class Rect;
 }
 
 namespace ui {
 class OSExchangeData;
 }
 
 namespace views {
 
+class InputMethod;
 class TooltipManager;
 class Widget;
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidget interface
 //
 //  An interface implemented by an object that encapsulates rendering, event
 //  handling and widget management provided by an underlying native toolkit.
 //
 class NativeWidget {
@@ skipping 41 matching lines @@
   // Returns true if a system screen reader is active for the NativeWidget.
   virtual bool IsScreenReaderActive() const = 0;
 
   // Sets or releases event capturing for this native widget.
   virtual void SetMouseCapture() = 0;
   virtual void ReleaseMouseCapture() = 0;
 
   // Returns true if this native widget is capturing all events.
   virtual bool HasMouseCapture() const = 0;
 
+  // Returns the InputMethod for this native widget.
+  // Note that all widgets in a widget hierarchy share the same input method.
+  // TODO(suzhe): rename to GetInputMethod() when NativeWidget implementation
+  // class doesn't inherit Widget anymore.
+  virtual InputMethod* GetInputMethodNative() = 0;
+
+  // Sets a different InputMethod instance to this native widget. The instance
+  // must not be initialized, the ownership will be assumed by the native
+  // widget. It's only for testing purpose.
+  virtual void ReplaceInputMethod(InputMethod* input_method) = 0;
+
  protected:
   friend class Widget;
 
   // Returns a handle for the underlying native widget that can be used for
   // accelerated drawing.
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() = 0;
 
   // Widget pass-thrus, private to Views. --------------------------------------
   // See method documentation in Widget.
   virtual gfx::Rect GetWindowScreenBounds() const = 0;
@@ skipping 14 matching lines @@
   virtual void RunShellDrag(View* view,
                             const ui::OSExchangeData& data,
                             int operation) = 0;
   virtual void SchedulePaintInRect(const gfx::Rect& rect) = 0;
   virtual void SetCursor(gfx::NativeCursor cursor) = 0;
 };
 
 }  // namespace views
 
 #endif  // VIEWS_WIDGET_NATIVE_WIDGET_H_