Added common layout framework for system menu rows.

ash/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
 assert(use_aura)
@@ skipping 338 matching lines @@
     "common/system/tray/fixed_sized_image_view.cc",
     "common/system/tray/fixed_sized_image_view.h",
     "common/system/tray/fixed_sized_scroll_view.cc",
     "common/system/tray/fixed_sized_scroll_view.h",
     "common/system/tray/hover_highlight_view.cc",
     "common/system/tray/hover_highlight_view.h",
     "common/system/tray/ime_info.cc",
     "common/system/tray/ime_info.h",
     "common/system/tray/label_tray_view.cc",
     "common/system/tray/label_tray_view.h",
+    "common/system/tray/size_range_layout.cc",
+    "common/system/tray/size_range_layout.h",
     "common/system/tray/special_popup_row.cc",
     "common/system/tray/special_popup_row.h",
     "common/system/tray/system_menu_button.cc",
     "common/system/tray/system_menu_button.h",
     "common/system/tray/system_tray.cc",
     "common/system/tray/system_tray.h",
     "common/system/tray/system_tray_bubble.cc",
     "common/system/tray/system_tray_bubble.h",
     "common/system/tray/system_tray_controller.cc",
     "common/system/tray/system_tray_controller.h",
     "common/system/tray/system_tray_delegate.cc",
     "common/system/tray/system_tray_delegate.h",
     "common/system/tray/system_tray_item.cc",
     "common/system/tray/system_tray_item.h",
     "common/system/tray/system_tray_notifier.cc",
     "common/system/tray/system_tray_notifier.h",
+    "common/system/tray/three_view_layout.cc",
+    "common/system/tray/three_view_layout.h",
     "common/system/tray/throbber_view.cc",
     "common/system/tray/throbber_view.h",
     "common/system/tray/tray_background_view.cc",
     "common/system/tray/tray_background_view.h",
     "common/system/tray/tray_bubble_wrapper.cc",
     "common/system/tray/tray_bubble_wrapper.h",
     "common/system/tray/tray_constants.cc",
     "common/system/tray/tray_constants.h",
     "common/system/tray/tray_details_view.cc",
     "common/system/tray/tray_details_view.h",
@@ skipping 10 matching lines @@
     "common/system/tray/tray_popup_header_button.cc",
     "common/system/tray/tray_popup_header_button.h",
     "common/system/tray/tray_popup_item_container.cc",
     "common/system/tray/tray_popup_item_container.h",
     "common/system/tray/tray_popup_item_style.cc",
     "common/system/tray/tray_popup_item_style.h",
     "common/system/tray/tray_popup_label_button.cc",
     "common/system/tray/tray_popup_label_button.h",
     "common/system/tray/tray_popup_label_button_border.cc",
     "common/system/tray/tray_popup_label_button_border.h",
+    "common/system/tray/tray_popup_layout_factory.cc",
+    "common/system/tray/tray_popup_layout_factory.h",
     "common/system/tray/tray_utils.cc",
     "common/system/tray/tray_utils.h",
     "common/system/tray/view_click_listener.h",
     "common/system/tray_accessibility.cc",
     "common/system/tray_accessibility.h",
     "common/system/update/tray_update.cc",
     "common/system/update/tray_update.h",
     "common/system/update/update_observer.h",
     "common/system/user/button_from_view.cc",
     "common/system/user/button_from_view.h",
@@ skipping 801 matching lines @@
     "common/system/chromeos/palette/palette_tool_manager_unittest.cc",
     "common/system/chromeos/palette/tools/create_note_unittest.cc",
     "common/system/chromeos/palette/tools/screenshot_unittest.cc",
     "common/system/chromeos/power/power_status_unittest.cc",
     "common/system/chromeos/power/power_status_view_unittest.cc",
     "common/system/chromeos/power/tray_power_unittest.cc",
     "common/system/chromeos/session/logout_confirmation_controller_unittest.cc",
     "common/system/chromeos/session/tray_session_length_limit_unittest.cc",
     "common/system/ime/tray_ime_chromeos_unittest.cc",
     "common/system/tiles/tray_tiles_unittest.cc",
+    "common/system/tray/size_range_layout_unittest.cc",
     "common/system/tray/system_tray_unittest.cc",
+    "common/system/tray/three_view_layout_unittest.cc",
     "common/system/tray/tray_details_view_unittest.cc",
     "common/system/user/tray_user_unittest.cc",
 
     # TODO: convert to use AshTest http://crbug.com/654517.
     "common/wallpaper/wallpaper_controller_unittest.cc",
 
     # TODO: convert to use AshTest http://crbug.com/654524.
     "common/wm/overview/cleanup_animation_observer_unittest.cc",
     "dip_unittest.cc",
     "display/cursor_window_controller_unittest.cc",
@@ skipping 238 matching lines @@
   if (is_win) {
     configs -= [ "//build/config/win:console" ]
     configs += [ "//build/config/win:windowed" ]
     deps += [ "//sandbox" ]
   }
 
   if (is_chromeos) {
     deps += [ "//device/bluetooth" ]
   }
 }