Moves more code to ash/wm/common

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index c4101df0d636af24b2cbe6f83234ce71085a289a..2612050ff8621b24244fa9f369074979bef50f25 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -524,8 +524,6 @@
       'virtual_keyboard_controller.cc',
       'virtual_keyboard_controller.h',
       'volume_control_delegate.h',
-      'wm/always_on_top_controller.cc',
-      'wm/always_on_top_controller.h',
       'wm/ash_focus_rules.cc',
       'wm/ash_focus_rules.h',
       'wm/ash_native_cursor_manager.cc',
@@ -542,6 +540,8 @@
       'wm/aura/wm_window_aura.h',
       'wm/boot_splash_screen_chromeos.cc',
       'wm/boot_splash_screen_chromeos.h',
+      'wm/common/always_on_top_controller.cc',
+      'wm/common/always_on_top_controller.h',
       'wm/common/background_animator.cc',
       'wm/common/background_animator.h',
       'wm/common/default_state.cc',
@@ -567,6 +567,8 @@
       'wm/common/window_animation_types.h',
       'wm/common/window_parenting_utils.cc',
       'wm/common/window_parenting_utils.h',
+      'wm/common/window_positioner.cc',
+      'wm/common/window_positioner.h',
       'wm/common/window_positioning_utils.cc',
       'wm/common/window_positioning_utils.h',
       'wm/common/window_resizer.cc',
@@ -597,6 +599,9 @@
       'wm/common/wm_window_observer.h',
       'wm/common/wm_window_property.h',
       'wm/common/wm_window_tracker.h',
+      'wm/common/workspace/workspace_layout_manager.cc',
+      'wm/common/workspace/workspace_layout_manager.h',
+      'wm/common/workspace/workspace_layout_manager_backdrop_delegate.h',
       'wm/common/workspace/workspace_layout_manager_delegate.h',
       'wm/common/workspace/workspace_types.h',
       'wm/cursor_manager_chromeos.cc',
@@ -705,8 +710,6 @@
       'wm/window_cycle_controller.h',
       'wm/window_cycle_list.cc',
       'wm/window_cycle_list.h',
-      'wm/window_positioner.cc',
-      'wm/window_positioner.h',
       'wm/window_properties.cc',
       'wm/window_properties.h',
       'wm/window_state_aura.cc',
@@ -723,9 +726,6 @@
       'wm/workspace/two_step_edge_cycler.h',
       'wm/workspace/workspace_event_handler.cc',
       'wm/workspace/workspace_event_handler.h',
-      'wm/workspace/workspace_layout_manager.cc',
-      'wm/workspace/workspace_layout_manager.h',
-      'wm/workspace/workspace_layout_manager_backdrop_delegate.h',
       'wm/workspace/workspace_window_resizer.cc',
       'wm/workspace/workspace_window_resizer.h',
       'wm/workspace_controller.cc',