[content shell] enable touch events for layout tests

content/shell/webkit_test_helpers.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 "content/shell/webkit_test_helpers.h"
 
 #include "base/utf_string_conversions.h"
 #include "third_party/WebKit/Tools/DumpRenderTree/chromium/TestRunner/public/WebPreferences.h"
 #include "webkit/glue/webpreferences.h"
 
@@ skipping 32 matching lines @@
   to->allow_running_insecure_content = from.allowRunningOfInsecureContent;
   to->css_shaders_enabled = from.cssCustomFilterEnabled;
   to->should_respect_image_orientation = from.shouldRespectImageOrientation;
   to->asynchronous_spell_checking_enabled =
       from.asynchronousSpellCheckingEnabled;
   to->allow_file_access_from_file_urls = from.allowFileAccessFromFileURLs;
   to->author_and_user_styles_enabled = from.authorAndUserStylesEnabled;
   to->javascript_can_open_windows_automatically =
       from.javaScriptCanOpenWindowsAutomatically;
   to->user_style_sheet_location = from.userStyleSheetLocation;
+  to->touch_drag_drop_enabled = from.touchDragDropEnabled;
 }
 
 // Applies settings that differ between layout tests and regular mode. Some
 // of the defaults are controlled via command line flags which are
 // automatically set for layout tests.
 void ApplyLayoutTestDefaultPreferences(webkit_glue::WebPreferences* prefs) {
   prefs->allow_universal_access_from_file_urls = true;
   prefs->dom_paste_enabled = true;
   prefs->javascript_can_access_clipboard = true;
   prefs->xss_auditor_enabled = false;
@@ skipping 31 matching lines @@
       ASCIIToUTF16("Courier");
   prefs->sans_serif_font_family_map[
       webkit_glue::WebPreferences::kCommonScript] = ASCIIToUTF16("Helvetica");
   prefs->minimum_logical_font_size = 9;
   prefs->asynchronous_spell_checking_enabled = false;
   prefs->unified_textchecker_enabled = true;
   prefs->user_style_sheet_enabled = true;
 }
 
 }  // namespace content