[Mac] Implement the system dictionary popup by implementing NSTextInput methods.

chrome/browser/renderer_host/render_widget_host_view_views.h

 // Copyright (c) 2010 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 CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_VIEWS_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_VIEWS_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 52 matching lines @@
                                        const gfx::Rect& caret_rect) OVERRIDE;
   virtual void ImeCancelComposition() OVERRIDE;
   virtual void DidUpdateBackingStore(
       const gfx::Rect& scroll_rect, int scroll_dx, int scroll_dy,
       const std::vector<gfx::Rect>& copy_rects) OVERRIDE;
   virtual void RenderViewGone(base::TerminationStatus status,
                               int error_code) OVERRIDE;
   virtual void Destroy() OVERRIDE;
   virtual void WillDestroyRenderWidget(RenderWidgetHost* rwh) OVERRIDE {}
   virtual void SetTooltipText(const std::wstring& tooltip_text) OVERRIDE;
-  virtual void SelectionChanged(const std::string& text) OVERRIDE;
+  virtual void SelectionChanged(const std::string& text,
+                                int start,
+                                int end) OVERRIDE;
   virtual void ShowingContextMenu(bool showing) OVERRIDE;
   virtual BackingStore* AllocBackingStore(const gfx::Size& size) OVERRIDE;
   virtual void SetBackground(const SkBitmap& background) OVERRIDE;
   virtual void CreatePluginContainer(gfx::PluginWindowHandle id) OVERRIDE;
   virtual void DestroyPluginContainer(gfx::PluginWindowHandle id) OVERRIDE;
   virtual void SetVisuallyDeemphasized(const SkColor* color,
                                        bool animate) OVERRIDE;
   virtual bool ContainsNativeView(gfx::NativeView native_view) const OVERRIDE;
   virtual void AcceleratedCompositingActivated(bool activated) OVERRIDE;
   virtual gfx::PluginWindowHandle AcquireCompositingSurface() OVERRIDE;
@@ skipping 102 matching lines @@
   WebKit::WebTouchEvent touch_event_;
 
   // Input method context used to translating sequence of key events into other
   // languages.
   scoped_ptr<IMEContextHandler> ime_context_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewViews);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_VIEWS_H_