ui::LocatedEvent location() returns gfx::PointF

chrome/browser/ui/views/omnibox/omnibox_view_views.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 "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 658 matching lines @@
     // selection lest restoring it fights with the "select all" action.  It's
     // possible to later set select_all_on_mouse_release_ back to false, but
     // that happens for things like dragging, which are cases where having
     // invalidated this saved selection is still OK.
     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
   }
   return views::Textfield::OnMousePressed(event);
 }
 
 bool OmniboxViewViews::OnMouseDragged(const ui::MouseEvent& event) {
-  if (ExceededDragThreshold(event.location() - last_click_location()))
+  if (ExceededDragThreshold(gfx::ToFlooredPoint(event.location()) -
+                            last_click_location()))
     select_all_on_mouse_release_ = false;
   return views::Textfield::OnMouseDragged(event);
 }
 
 void OmniboxViewViews::OnMouseReleased(const ui::MouseEvent& event) {
   views::Textfield::OnMouseReleased(event);
   if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) {
     // When the user has clicked and released to give us focus, select all
     // unless we're omitting the URL (in which case refining an existing query
     // is common enough that we do click-to-place-cursor).
@@ skipping 351 matching lines @@
     menu_contents->InsertItemWithStringIdAt(
         select_all_position + 1, IDS_SHOW_URL, IDS_SHOW_URL);
   }
 
   // Minor note: We use IDC_ for command id here while the underlying textfield
   // is using IDS_ for all its command ids. This is because views cannot depend
   // on IDC_ for now.
   menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
       IDS_EDIT_SEARCH_ENGINES);
 }