Move code related to the window controls to ash/wm/caption_buttons

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index ec27f84f0be84b838cfa89a24ad520df6d46e9d4..dc60602b3d12ebeca0deb24424419313d52b09e0 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -386,6 +386,15 @@
         'wm/base_layout_manager.h',
         'wm/boot_splash_screen_chromeos.cc',
         'wm/boot_splash_screen_chromeos.h',
+        'wm/caption_buttons/alternate_frame_caption_button.cc',
+        'wm/caption_buttons/alternate_frame_caption_button.h',
+        'wm/caption_buttons/frame_caption_button_container_view.cc',
+        'wm/caption_buttons/frame_caption_button_container_view.h',
+        'wm/caption_buttons/frame_maximize_button.cc',
+        'wm/caption_buttons/frame_maximize_button.h',
+        'wm/caption_buttons/maximize_bubble_controller.cc',
+        'wm/caption_buttons/maximize_bubble_controller.h',
+        'wm/caption_buttons/maximize_bubble_frame_state.h',
         'wm/coordinate_conversion.cc',
         'wm/coordinate_conversion.h',
         'wm/custom_frame_view_ash.cc',
@@ -424,8 +433,6 @@
         '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/mru_window_tracker.cc',
         'wm/mru_window_tracker.h',
         'wm/overlay_event_filter.cc',
@@ -503,21 +510,14 @@
         'wm/window_util.h',
         'wm/workspace_controller.cc',
         'wm/workspace_controller.h',
-        'wm/workspace/alternate_frame_caption_button.cc',
-        'wm/workspace/alternate_frame_caption_button.h',
         'wm/workspace/auto_window_management.cc',
         'wm/workspace/auto_window_management.h',
         'wm/workspace/colored_window_controller.cc',
         'wm/workspace/colored_window_controller.h',
         'wm/workspace/desktop_background_fade_controller.cc',
         'wm/workspace/desktop_background_fade_controller.h',
-        'wm/workspace/frame_caption_button_container_view.cc',
-        'wm/workspace/frame_caption_button_container_view.h',
-        'wm/workspace/frame_maximize_button.cc',
-        'wm/workspace/frame_maximize_button.h',
         'wm/workspace/magnetism_matcher.cc',
         'wm/workspace/magnetism_matcher.h',
-        'wm/workspace/maximize_bubble_frame_state.h',
         'wm/workspace/multi_window_resize_controller.cc',
         'wm/workspace/multi_window_resize_controller.h',
         'wm/workspace/phantom_window_controller.cc',
@@ -756,6 +756,7 @@
         'touch/touch_observer_hud_unittest.cc',
         'wm/ash_native_cursor_manager_unittest.cc',
         'wm/base_layout_manager_unittest.cc',
+        'wm/caption_buttons/frame_caption_button_container_view_unittest.cc',
         'wm/custom_frame_view_ash_unittest.cc',
         'wm/dock/docked_window_layout_manager_unittest.cc',
         'wm/dock/docked_window_resizer_unittest.cc',
@@ -783,7 +784,6 @@
         'wm/workspace_controller_test_helper.cc',
         'wm/workspace_controller_test_helper.h',
         'wm/workspace_controller_unittest.cc',
-        'wm/workspace/frame_caption_button_container_view_unittest.cc',
         'wm/workspace/magnetism_matcher_unittest.cc',
         'wm/workspace/multi_window_resize_controller_unittest.cc',
         'wm/workspace/snap_sizer_unittest.cc',