[Android] Add supportMultipleWindows setting

webkit/glue/webpreferences.h

 // 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.
 //
 // A struct for managing webkit's settings.
 //
 // Adding new values to this class probably involves updating
 // WebKit::WebSettings, content/common/view_messages.h, browser/tab_contents/
 // render_view_host_delegate_helper.cc, and browser/profiles/profile.cc.
 
@@ skipping 99 matching lines @@
   bool accelerated_2d_canvas_enabled;
   bool deferred_2d_canvas_enabled;
   bool accelerated_painting_enabled;
   bool accelerated_filters_enabled;
   bool gesture_tap_highlight_enabled;
   bool accelerated_plugins_enabled;
   bool memory_info_enabled;
   bool fullscreen_enabled;
   bool allow_displaying_insecure_content;
   bool allow_running_insecure_content;
-#if defined(OS_ANDROID)
-  bool text_autosizing_enabled;
-  float font_scale_factor;
-  bool force_enable_zoom;
-  bool user_gesture_required_for_media_playback;
-#endif
   bool password_echo_enabled;
   bool should_print_backgrounds;
   bool enable_scroll_animator;
   bool visual_word_movement_enabled;
   bool css_sticky_position_enabled;
   bool css_regions_enabled;
   bool css_shaders_enabled;
   bool css_variables_enabled;
   bool device_supports_touch;
   bool device_supports_mouse;
   int default_tile_width;
   int default_tile_height;
   int max_untiled_layer_width;
   int max_untiled_layer_height;
   bool fixed_position_creates_stacking_context;
   bool sync_xhr_in_documents_enabled;
   int number_of_cpu_cores;
 
   // This flags corresponds to a Page's Settings' setCookieEnabled state. It
   // only controls whether or not the "document.cookie" field is properly
   // connected to the backing store, for instance if you wanted to be able to
   // define custom getters and setters from within a unique security content
   // without raising a DOM security exception.
   bool cookie_enabled;
 
   bool apply_page_scale_factor_in_compositor;
 
+#if defined(OS_ANDROID)
+  bool text_autosizing_enabled;
+  float font_scale_factor;
+  bool force_enable_zoom;
+  bool user_gesture_required_for_media_playback;
+  bool supports_multiple_windows;
+#endif
+
   // We try to keep the default values the same as the default values in
   // chrome, except for the cases where it would require lots of extra work for
   // the embedder to use the same default value.
   WebPreferences();
   ~WebPreferences();
 
   void Apply(WebKit::WebView* web_view) const;
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBPREFERENCES_H__