Moves RootWindowControllerCommon and LayoutManager to common

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index 6ae93a0a7fa5628a7a1be5de8673e23ebec5bf7f..bacbea4bae0cca9d80a25cc55307410f0024b68a 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -49,6 +49,9 @@
       'cancel_mode.h',
       'cast_config_delegate.cc',
       'cast_config_delegate.h',
+      'common/root_window_controller_common.cc',
+      'common/root_window_controller_common.h',
+      'common/shell_window_ids.h',
       'common/wm/always_on_top_controller.cc',
       'common/wm/always_on_top_controller.h',
       'common/wm/background_animator.cc',
@@ -74,6 +77,8 @@
       'common/wm/panels/panel_window_resizer.h',
       'common/wm/root_window_finder.cc',
       'common/wm/root_window_finder.h',
+      'common/wm/root_window_layout_manager.cc',
+      'common/wm/root_window_layout_manager.h',
       'common/wm/shelf/wm_shelf.h',
       'common/wm/shelf/wm_shelf_constants.cc',
       'common/wm/shelf/wm_shelf_constants.h',
@@ -296,8 +301,6 @@
       'popup_message.h',
       'root_window_controller.cc',
       'root_window_controller.h',
-      'root_window_controller_common.cc',
-      'root_window_controller_common.h',
       'root_window_settings.cc',
       'root_window_settings.h',
       'rotator/screen_rotation_animation.cc',
@@ -375,7 +378,6 @@
       'shell_factory.h',
       'shell_init_params.cc',
       'shell_init_params.h',
-      'shell_window_ids.h',
       'snap_to_pixel_layout_manager.cc',
       'snap_to_pixel_layout_manager.h',
       'sticky_keys/sticky_keys_controller.cc',
@@ -710,8 +712,6 @@
       'wm/resize_shadow.h',
       'wm/resize_shadow_controller.cc',
       'wm/resize_shadow_controller.h',
-      'wm/root_window_layout_manager.cc',
-      'wm/root_window_layout_manager.h',
       'wm/screen_dimmer.cc',
       'wm/screen_dimmer.h',
       'wm/session_state_animator.cc',