Fix long press touch selection on empty text fields

ui/touch_selection/touch_selection_controller.h

 // Copyright 2014 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_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_H_
 #define UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_H_
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "ui/gfx/geometry/point_f.h"
@@ skipping 129 matching lines @@
   // Returns the focal point of the start and end bounds, as defined by
   // their bottom coordinate.
   const gfx::PointF& GetStartPosition() const;
   const gfx::PointF& GetEndPosition() const;
 
   const gfx::SelectionBound& start() const { return start_; }
   const gfx::SelectionBound& end() const { return end_; }
 
   ActiveStatus active_status() const { return active_status_; }
 
+  bool insertion_active_or_requested() const {
+    return activate_insertion_automatically_;
+  }
+
  private:
   friend class TouchSelectionControllerTestApi;
 
   enum InputEventType { TAP, REPEATED_TAP, LONG_PRESS, INPUT_EVENT_TYPE_NONE };
 
   // TouchHandleClient implementation.
   void OnDragBegin(const TouchSelectionDraggable& draggable,
                    const gfx::PointF& drag_position) override;
   void OnDragUpdate(const TouchSelectionDraggable& draggable,
                     const gfx::PointF& drag_position) override;
@@ skipping 81 matching lines @@
   // Whether a selection handle was dragged during the current 'selection
   // session' - i.e. since the current selection has been activated.
   bool selection_handle_dragged_;
 
   DISALLOW_COPY_AND_ASSIGN(TouchSelectionController);
 };
 
 }  // namespace ui
 
 #endif  // UI_TOUCH_SELECTION_TOUCH_SELECTION_CONTROLLER_H_