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

ui/views/controls/textfield/textfield.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.
 
 #include "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 #include <utility>
 
 #include "base/trace_event/trace_event.h"
@@ skipping 631 matching lines @@
   OnBeforeUserAction();
   drag_selection_timer_.Stop();
   // Cancel suspected drag initiations, the user was clicking in the selection.
   if (initiating_drag_)
     MoveCursorTo(event.location(), false);
   initiating_drag_ = false;
   UpdateSelectionClipboard();
   OnAfterUserAction();
 }
 
+WordLookupClient* Textfield::GetWordLookupClient() {
+  return this;
+}
+
 bool Textfield::OnKeyPressed(const ui::KeyEvent& event) {
   ui::TextEditCommand edit_command = scheduled_text_edit_command_;
   scheduled_text_edit_command_ = ui::TextEditCommand::INVALID_COMMAND;
 
   // Since HandleKeyEvent() might destroy |this|, get a weak pointer and verify
   // it isn't null before proceeding.
   base::WeakPtr<Textfield> textfield(weak_ptr_factory_.GetWeakPtr());
 
   bool handled = controller_ && controller_->HandleKeyEvent(this, event);
 
@@ skipping 428 matching lines @@
   return drag_operations;
 }
 
 bool Textfield::CanStartDragForView(View* sender,
                                     const gfx::Point& press_pt,
                                     const gfx::Point& p) {
   return initiating_drag_ && GetRenderText()->IsPointInSelection(press_pt);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// Textfield, WordLookupClient overrides:
+
+bool Textfield::GetDecoratedWordAtPoint(const gfx::Point& point,
+                                        gfx::DecoratedText* decorated_word,
+                                        gfx::Point* baseline_point) {
+  return GetRenderText()->GetDecoratedWordAtPoint(point, decorated_word,
+                                                  baseline_point);
+}
+
+////////////////////////////////////////////////////////////////////////////////
 // Textfield, ui::TouchEditable overrides:
 
 void Textfield::SelectRect(const gfx::Point& start, const gfx::Point& end) {
   if (GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE)
     return;
 
   gfx::SelectionModel start_caret = GetRenderText()->FindCursorPosition(start);
   gfx::SelectionModel end_caret = GetRenderText()->FindCursorPosition(end);
   gfx::SelectionModel selection(
       gfx::Range(start_caret.caret_pos(), end_caret.caret_pos()),
@@ skipping 949 matching lines @@
 }
 
 void Textfield::OnCursorBlinkTimerFired() {
   DCHECK(ShouldBlinkCursor());
   gfx::RenderText* render_text = GetRenderText();
   render_text->set_cursor_visible(!render_text->cursor_visible());
   RepaintCursor();
 }
 
 }  // namespace views