Rename SessionStateController -> LockStateController

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index 7d05c1b837d055025e0c53d5daa017f6b233e982..2cae8abbce730246c17d2de681bb0c837c310c79 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -386,6 +386,11 @@
         'wm/gestures/two_finger_drag_handler.h',
         'wm/image_cursors.cc',
         'wm/image_cursors.h',
+        'wm/lock_state_controller.cc',
+        'wm/lock_state_controller.h',
+        'wm/lock_state_controller_impl2.cc',
+        'wm/lock_state_controller_impl2.h',
+        'wm/lock_state_observer.h',
         'wm/maximize_bubble_controller.cc',
         'wm/maximize_bubble_controller.h',
         'wm/overlay_event_filter.cc',
@@ -412,13 +417,8 @@
         'wm/screen_dimmer.h',
         'wm/session_state_animator.cc',
         'wm/session_state_animator.h',
-        'wm/session_state_controller.cc',
-        'wm/session_state_controller.h',
         'wm/session_state_controller_impl.cc',
         'wm/session_state_controller_impl.h',
-        'wm/session_state_controller_impl2.cc',
-        'wm/session_state_controller_impl2.h',
-        'wm/session_state_observer.h',
         'wm/stacking_controller.cc',
         'wm/stacking_controller.h',
         'wm/status_area_layout_manager.cc',
@@ -688,12 +688,12 @@
         'wm/custom_frame_view_ash_unittest.cc',
         'wm/drag_window_resizer_unittest.cc',
         'wm/frame_painter_unittest.cc',
+        'wm/lock_state_controller_impl2_unittest.cc',
         'wm/panels/panel_layout_manager_unittest.cc',
         'wm/panels/panel_window_resizer_unittest.cc',
         'wm/partial_screenshot_view_unittest.cc',
         'wm/power_button_controller_unittest.cc',
         'wm/screen_dimmer_unittest.cc',
-        'wm/session_state_controller_impl2_unittest.cc',
         'wm/stacking_controller_unittest.cc',
         'wm/system_gesture_event_filter_unittest.cc',
         'wm/system_modal_container_layout_manager_unittest.cc',