Cleanup of some old TODOs

ui/touch_selection/touch_selection_controller.cc

 // 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.
 
 #include "ui/touch_selection/touch_selection_controller.h"
 
 #include "base/auto_reset.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 
@@ skipping 98 matching lines @@
   response_pending_input_event_ = INPUT_EVENT_TYPE_NONE;
   base::AutoReset<InputEventType> auto_reset_response_pending_input_event(
       &response_pending_input_event_, causal_input_event);
 
   const bool is_selection_dragging = active_status_ == SELECTION_ACTIVE &&
                                      (start_selection_handle_->IsActive() ||
                                       end_selection_handle_->IsActive());
 
   // It's possible that the bounds temporarily overlap while a selection handle
   // is being dragged, incorrectly reporting a CENTER orientation.
-  // TODO(jdduke): This safeguard is racy, as it's possible the delayed response
-  // from handle positioning occurs *after* the handle dragging has ceased.
-  // Instead, prevent selection -> insertion transitions without an intervening
-  // action or selection clearing of some sort, crbug.com/392696.
   if (is_selection_dragging) {
     if (start_orientation_ == TouchHandleOrientation::CENTER)
       start_orientation_ = start_selection_handle_->orientation();
     if (end_orientation_ == TouchHandleOrientation::CENTER)
       end_orientation_ = end_selection_handle_->orientation();
   }
 
   if (GetStartPosition() != GetEndPosition() ||
       (is_selection_dragging &&
        start_orientation_ != TouchHandleOrientation::UNDEFINED &&
@@ skipping 532 matching lines @@
     base::TimeDelta duration = base::TimeTicks::Now() - selection_start_time_;
     UMA_HISTOGRAM_CUSTOM_TIMES("Event.TouchSelection.WasDraggedDuration",
                                duration,
                                base::TimeDelta::FromMilliseconds(500),
                                base::TimeDelta::FromSeconds(60),
                                60);
   }
 }
 
 }  // namespace ui