Show handles even when dragging from outside selectable region

content/browser/renderer_host/input/gesture_text_selector.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 "content/browser/renderer_host/input/gesture_text_selector.h"
 
 #include "ui/events/event_constants.h"
 #include "ui/events/gesture_detection/gesture_event_data.h"
 #include "ui/events/gesture_detection/motion_event.h"
 
@@ skipping 22 matching lines @@
   if (!text_selection_triggered_)
     return false;
 
   switch (gesture.type()) {
     case ui::ET_GESTURE_TAP: {
       client_->LongPress(gesture.time, gesture.x, gesture.y);
       break;
     }
     case ui::ET_GESTURE_SCROLL_BEGIN: {
       client_->Unselect();
-      // TODO(changwan): check if we can show handles on ET_GESTURE_SCROLL_END
-      // instead. Currently it is not possible as ShowSelectionHandles should
-      // be called before we change the selection.
-      client_->ShowSelectionHandlesAutomatically();
       anchor_x_ = gesture.x;
       anchor_y_ = gesture.y;
       break;
     }
     case ui::ET_GESTURE_SCROLL_UPDATE: {
+      // TODO(changwan): check if we can show handles on ET_GESTURE_SCROLL_END
+      // instead. Currently it is not possible as ShowSelectionHandles should
+      // be called before we change the selection.
+      client_->ShowSelectionHandlesAutomatically();
       client_->SelectRange(anchor_x_, anchor_y_, gesture.x, gesture.y);
       break;
     }
     default:
       // Suppress all other gestures when we are selecting text.
       break;
   }
   return true;
 }
 
 // static
 bool GestureTextSelector::ShouldStartTextSelection(
     const ui::MotionEvent& event) {
   DCHECK_GT(event.GetPointerCount(), 0u);
   // Currently we are supporting stylus-only cases.
   const bool is_stylus =
       event.GetToolType(0) == ui::MotionEvent::TOOL_TYPE_STYLUS;
   const bool is_only_secondary_button_pressed =
       event.GetButtonState() == ui::MotionEvent::BUTTON_SECONDARY;
   return is_stylus && is_only_secondary_button_pressed;
 }
 
 }  // namespace content