Remove "Alternate frame caption button style" command line flag

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index eedf7a711e781ea86a1518b8ccb2ea612b0674c5..ad4398ed8edd08f61a6e75f208ca88b08ba0622c 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -164,20 +164,11 @@
         'frame/caption_buttons/alternate_frame_size_button.cc',
         'frame/caption_buttons/alternate_frame_size_button.h',
         'frame/caption_buttons/alternate_frame_size_button_delegate.h',
-        'frame/caption_buttons/bubble_contents_button_row.cc',
-        'frame/caption_buttons/bubble_contents_button_row.h',
         'frame/caption_buttons/caption_button_types.h',
         'frame/caption_buttons/frame_caption_button.cc',
         'frame/caption_buttons/frame_caption_button.h',
         'frame/caption_buttons/frame_caption_button_container_view.cc',
         'frame/caption_buttons/frame_caption_button_container_view.h',
-        'frame/caption_buttons/frame_maximize_button.cc',
-        'frame/caption_buttons/frame_maximize_button.h',
-        'frame/caption_buttons/frame_maximize_button_observer.h',
-        'frame/caption_buttons/maximize_bubble_controller.cc',
-        'frame/caption_buttons/maximize_bubble_controller.h',
-        'frame/caption_buttons/maximize_bubble_controller_bubble.cc',
-        'frame/caption_buttons/maximize_bubble_controller_bubble.h',
         'frame/custom_frame_view_ash.cc',
         'frame/custom_frame_view_ash.h',
         'frame/frame_border_hit_test_controller.cc',
@@ -680,7 +671,6 @@
         'wm/workspace/multi_window_resize_controller.h',
         'wm/workspace/phantom_window_controller.cc',
         'wm/workspace/phantom_window_controller.h',
-        'wm/workspace/snap_types.h',
         'wm/workspace/two_step_edge_cycler.cc',
         'wm/workspace/two_step_edge_cycler.h',
         'wm/workspace/workspace_event_handler.cc',
@@ -932,7 +922,6 @@
         'focus_cycler_unittest.cc',
         'frame/caption_buttons/alternate_frame_size_button_unittest.cc',
         'frame/caption_buttons/frame_caption_button_container_view_unittest.cc',
-        'frame/caption_buttons/frame_maximize_button_unittest.cc',
         'frame/custom_frame_view_ash_unittest.cc',
         'frame/default_header_painter_unittest.cc',
         'host/ash_window_tree_host_x11_unittest.cc',
@@ -1014,7 +1003,6 @@
         'wm/maximize_mode/workspace_backdrop_delegate.h',
         'wm/workspace/magnetism_matcher_unittest.cc',
         'wm/workspace/multi_window_resize_controller_unittest.cc',
-        'wm/workspace/phantom_window_controller_unittest.cc',
         'wm/workspace/workspace_event_handler_test_helper.cc',
         'wm/workspace/workspace_event_handler_test_helper.h',
         'wm/workspace/workspace_event_handler_unittest.cc',