Fix omnibox mouse click highlight/word select/focus issue in aura build.

views/view_aura.cc

 // Copyright (c) 2011 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 "views/view.h"
 
 namespace views {
 
 gfx::NativeViewAccessible View::GetNativeViewAccessible() {
   return NULL;
 }
 
 int View::GetHorizontalDragThreshold() {
-  return 0;
+  // Use the default horizontal drag threshold on gtk for now.

[oshima, 2011/11/11 01:52:32]

same as what gtk uses.

+  // TODO(jennyz): We may need to adjust this value for different platform.
+  return 8;

[oshima, 2011/11/11 01:52:32]

This has to be adjusted for different display density.

(i've been told to avoid "we":)

 }
 
 int View::GetVerticalDragThreshold() {
-  return 0;
+  return GetHorizontalDragThreshold();
 }
 
 }  // namespace views