Disable synchronous XMLHttpRequests in platform app documents.

webkit/glue/webpreferences.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 "webkit/glue/webpreferences.h"
 
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNetworkStateNotifier.h"
@@ skipping 93 matching lines @@
       enable_scroll_animator(false),
       hixie76_websocket_protocol_enabled(false),
       visual_word_movement_enabled(false),
       per_tile_painting_enabled(false),
       css_regions_enabled(false),
       css_shaders_enabled(false),
       default_tile_width(256),
       default_tile_height(256),
       max_untiled_layer_width(512),
       max_untiled_layer_height(512),
-      fixed_position_creates_stacking_context(false) {
+      fixed_position_creates_stacking_context(false),
+      sync_xhr_in_documents_enabled(true) {
   standard_font_family_map[kCommonScript] =
       ASCIIToUTF16("Times New Roman");
   fixed_font_family_map[kCommonScript] =
       ASCIIToUTF16("Courier New");
   serif_font_family_map[kCommonScript] =
       ASCIIToUTF16("Times New Roman");
   sans_serif_font_family_map[kCommonScript] =
       ASCIIToUTF16("Arial");
   cursive_font_family_map[kCommonScript] =
       ASCIIToUTF16("Script");
@@ skipping 96 matching lines @@
     settings->setUserStyleSheetLocation(user_style_sheet_location);
   else
     settings->setUserStyleSheetLocation(WebURL());
   settings->setAuthorAndUserStylesEnabled(author_and_user_styles_enabled);
   settings->setUsesPageCache(uses_page_cache);
   settings->setDownloadableBinaryFontsEnabled(remote_fonts_enabled);
   settings->setJavaScriptCanAccessClipboard(javascript_can_access_clipboard);
   settings->setXSSAuditorEnabled(xss_auditor_enabled);
   settings->setDNSPrefetchingEnabled(dns_prefetching_enabled);
   settings->setLocalStorageEnabled(local_storage_enabled);
+  settings->setSyncXHRInDocumentsEnabled(sync_xhr_in_documents_enabled);
   WebRuntimeFeatures::enableDatabase(databases_enabled);
   settings->setOfflineWebApplicationCacheEnabled(application_cache_enabled);
   settings->setCaretBrowsingEnabled(caret_browsing_enabled);
   settings->setHyperlinkAuditingEnabled(hyperlink_auditing_enabled);
 
   // This setting affects the behavior of links in an editable region:
   // clicking the link should select it rather than navigate to it.
   // Safari uses the same default. It is unlikley an embedder would want to
   // change this, since it would break existing rich text editors.
   settings->setEditableLinkBehaviorNeverLive();
@@ skipping 133 matching lines @@
   settings->setMaxUntiledLayerSize(
       WebSize(max_untiled_layer_width, max_untiled_layer_height));
 
   settings->setFixedPositionCreatesStackingContext(
       fixed_position_creates_stacking_context);
 
   WebNetworkStateNotifier::setOnLine(is_online);
 }
 
 }  // namespace webkit_glue