MacViews: Implement Force Touch/Mac dictionary lookup for Textfields.

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 <stddef.h>
 
 #include <algorithm>
@@ skipping 31 matching lines @@
 #if defined(OS_WIN)
 #include "base/win/scoped_comptr.h"
 #endif
 
 using ui::OSExchangeData;
 
 namespace gfx {
 class Canvas;
 class Insets;
 class Path;
+class RenderText;
 class Transform;
 }
 
 namespace ui {
 struct AXViewState;
 class Compositor;
 class InputMethod;
 class Layer;
 class NativeTheme;
 class PaintContext;
@@ skipping 504 matching lines @@
   // Returns the View that should be the target of an event having |rect| as
   // its location, or NULL if no such target exists. |rect| is in the local
   // coordinate space of |this|.
   View* GetEventHandlerForRect(const gfx::Rect& rect);
 
   // Returns the deepest visible descendant that contains the specified point
   // and supports tooltips. If the view does not contain the point, returns
   // NULL.
   virtual View* GetTooltipHandlerForPoint(const gfx::Point& point);
 
+  // Returns the RenderText instance corresponding to the view. Currently, only
+  // views which have at most one RenderText instance, should implement this.
+  virtual gfx::RenderText* GetRenderText();
+
   // Return the cursor that should be used for this view or the default cursor.
   // The event location is in the receiver's coordinate system. The caller is
   // responsible for managing the lifetime of the returned object, though that
   // lifetime may vary from platform to platform. On Windows and Aura,
   // the cursor is a shared resource.
   virtual gfx::NativeCursor GetCursor(const ui::MouseEvent& event);
 
   // A convenience function which calls HitTestRect() with a rect of size
   // 1x1 and an origin of |point|. |point| is in the local coordinate space
   // of |this|.
@@ skipping 978 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_