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

ui/views/view.cc

 // 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.
 
 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first.
 
 #include "ui/views/view.h"
 
 #include <algorithm>
 #include <cmath>
@@ skipping 903 matching lines @@
 
     gfx::Point point_in_child_coords(point);
     ConvertPointToTarget(this, child, &point_in_child_coords);
     View* handler = child->GetTooltipHandlerForPoint(point_in_child_coords);
     if (handler)
       return handler;
   }
   return this;
 }
 
+const gfx::RenderText* View::GetRenderText() const {
+  return nullptr;
+}
+
+gfx::RenderText* View::GetRenderText() {
+  return const_cast<gfx::RenderText*>(
+      const_cast<const View*>(this)->GetRenderText());
+}
+
 gfx::NativeCursor View::GetCursor(const ui::MouseEvent& event) {
 #if defined(OS_WIN)
   static ui::Cursor arrow;
   if (!arrow.platform())
     arrow.SetPlatformCursor(LoadCursor(NULL, IDC_ARROW));
   return arrow;
 #else
   return gfx::kNullCursor;
 #endif
 }
@@ skipping 1484 matching lines @@
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   gfx::Point widget_location(event.location());
   ConvertPointToWidget(this, &widget_location);
   widget->RunShellDrag(this, data, widget_location, drag_operations, source);
   // WARNING: we may have been deleted.
   return true;
 }
 
 }  // namespace views