Experimental alignment layout manager using a property on the views

ui/views/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/ozone/ozone.gni")
 
 config("flags") {
   defines = [ "TOOLKIT_VIEWS=1" ]
 }
 
 component("views") {
   all_dependent_configs = [ ":flags" ]
   sources = [
     "accessibility/native_view_accessibility.cc",
     "accessibility/native_view_accessibility.h",
     "accessibility/native_view_accessibility_win.cc",
     "accessibility/native_view_accessibility_win.h",
     "accessible_pane_view.cc",
     "accessible_pane_view.h",
+    "anchor_attribute.cc",
+    "anchor_attribute.h",
     "animation/bounds_animator.cc",
     "animation/bounds_animator.h",
     "animation/flood_fill_ink_drop_ripple.cc",
     "animation/flood_fill_ink_drop_ripple.h",
     "animation/ink_drop.h",
     "animation/ink_drop_animation_ended_reason.cc",
     "animation/ink_drop_animation_ended_reason.h",
     "animation/ink_drop_highlight.cc",
     "animation/ink_drop_highlight.h",
     "animation/ink_drop_highlight_observer.h",
     "animation/ink_drop_host.h",
     "animation/ink_drop_host_view.cc",
     "animation/ink_drop_host_view.h",
     "animation/ink_drop_impl.cc",
     "animation/ink_drop_impl.h",
     "animation/ink_drop_painted_layer_delegates.cc",
     "animation/ink_drop_painted_layer_delegates.h",
     "animation/ink_drop_ripple.cc",
     "animation/ink_drop_ripple.h",
     "animation/ink_drop_ripple_observer.h",
     "animation/ink_drop_state.cc",
     "animation/ink_drop_state.h",
     "animation/ink_drop_stub.cc",
     "animation/ink_drop_stub.h",
     "animation/scroll_animator.cc",
     "animation/scroll_animator.h",
     "animation/square_ink_drop_ripple.cc",
     "animation/square_ink_drop_ripple.h",
+    "attributes.cc",
+    "attributes.h",
     "background.cc",
     "background.h",
     "border.cc",
     "border.h",
     "bubble/bubble_border.cc",
     "bubble/bubble_border.h",
     "bubble/bubble_dialog_delegate.cc",
     "bubble/bubble_dialog_delegate.h",
     "bubble/bubble_frame_view.cc",
     "bubble/bubble_frame_view.h",
@@ skipping 189 matching lines @@
     "controls/tree/tree_view_controller.h",
     "debug_utils.cc",
     "debug_utils.h",
     "drag_controller.h",
     "drag_utils.cc",
     "drag_utils.h",
     "drag_utils_mac.mm",
     "event_monitor.h",
     "event_monitor_mac.h",
     "event_monitor_mac.mm",
+    "fill_attribute.cc",
+    "fill_attribute.h",
     "focus/external_focus_tracker.cc",
     "focus/external_focus_tracker.h",
     "focus/focus_manager.cc",
     "focus/focus_manager.h",
     "focus/focus_manager_delegate.h",
     "focus/focus_manager_factory.cc",
     "focus/focus_manager_factory.h",
     "focus/focus_search.cc",
     "focus/focus_search.h",
     "focus/view_storage.cc",
     "focus/view_storage.h",
     "focus/widget_focus_manager.cc",
     "focus/widget_focus_manager.h",
+    "layout/align_layout.cc",
+    "layout/align_layout.h",
     "layout/box_layout.cc",
     "layout/box_layout.h",
     "layout/fill_layout.cc",
     "layout/fill_layout.h",
     "layout/grid_layout.cc",
     "layout/grid_layout.h",
     "layout/layout_constants.h",
     "layout/layout_manager.cc",
     "layout/layout_manager.h",
     "linux_ui/linux_ui.cc",
@@ skipping 517 matching lines @@
     "accessibility/native_view_accessibility_win_unittest.cc",
     "accessible_pane_view_unittest.cc",
     "animation/bounds_animator_unittest.cc",
     "animation/flood_fill_ink_drop_ripple_unittest.cc",
     "animation/ink_drop_highlight_unittest.cc",
     "animation/ink_drop_host_view_unittest.cc",
     "animation/ink_drop_impl_unittest.cc",
     "animation/ink_drop_ripple_unittest.cc",
     "animation/ink_drop_unittest.cc",
     "animation/square_ink_drop_ripple_unittest.cc",
+    "attributes_unittest.cc",
     "border_unittest.cc",
     "bubble/bubble_border_unittest.cc",
     "bubble/bubble_dialog_delegate_unittest.cc",
     "bubble/bubble_frame_view_unittest.cc",
     "bubble/bubble_window_targeter_unittest.cc",
     "cocoa/bridged_native_widget_unittest.mm",
     "cocoa/cocoa_mouse_capture_unittest.mm",
     "cocoa/drag_drop_client_mac_unittest.mm",
     "controls/button/blue_button_unittest.cc",
     "controls/button/custom_button_unittest.cc",
@@ skipping 21 matching lines @@
     "controls/tabbed_pane/tabbed_pane_unittest.cc",
     "controls/table/table_utils_unittest.cc",
     "controls/table/table_view_unittest.cc",
     "controls/table/test_table_model.cc",
     "controls/table/test_table_model.h",
     "controls/textfield/textfield_model_unittest.cc",
     "controls/tree/tree_view_unittest.cc",
     "event_monitor_unittest.cc",
     "focus/focus_manager_unittest.cc",
     "focus/focus_traversal_unittest.cc",
+    "layout/align_layout_unittest.cc",
+    "layout/anchor_layout_unittest.cc",
     "layout/box_layout_unittest.cc",
     "layout/grid_layout_unittest.cc",
     "rect_based_targeting_utils_unittest.cc",
     "view_model_unittest.cc",
     "view_model_utils_unittest.cc",
     "view_targeter_unittest.cc",
     "view_unittest.cc",
     "widget/native_widget_mac_accessibility_unittest.mm",
     "widget/native_widget_mac_unittest.mm",
     "widget/native_widget_unittest.cc",
@@ skipping 151 matching lines @@
       "//ui/base:test_support",
       "//ui/compositor",
       "//ui/events:test_support",
       "//ui/gl:test_support",
       "//ui/resources",
       "//ui/resources:ui_test_pak",
       "//ui/strings",
     ]
   }
 }