[mutter] MetaScreen: Remove const qualifiers from monitor getters

[Jonas Ådahl <jadahl src gnome org>]

commit 441b854d41331a3a4147f5498ed157f47f252117
Author: Jonas Ådahl <jadahl gmail com>
Date:   Mon Nov 28 21:15:57 2016 +0800

    MetaScreen: Remove const qualifiers from monitor getters
    
    They will cause issues when monitors are stared in a GList.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777732

 src/core/place.c          |    2 +-
 src/core/screen-private.h |   28 ++++++++++++++--------------
 src/core/screen.c         |   18 +++++++++---------
 3 files changed, 24 insertions(+), 24 deletions(-)
---
diff --git a/src/core/place.c b/src/core/place.c
index decb590..38118cf 100644
--- a/src/core/place.c
+++ b/src/core/place.c
@@ -671,7 +671,7 @@ meta_window_place (MetaWindow        *window,
                    int               *new_y)
 {
   GList *windows = NULL;
-  const MetaLogicalMonitor *logical_monitor;
+  MetaLogicalMonitor *logical_monitor;
 
   meta_topic (META_DEBUG_PLACEMENT, "Placing window %s\n", window->desc);
 
diff --git a/src/core/screen-private.h b/src/core/screen-private.h
index da7fbd8..809c461 100644
--- a/src/core/screen-private.h
+++ b/src/core/screen-private.h
@@ -133,22 +133,22 @@ void          meta_screen_hide_tile_preview            (MetaScreen    *screen);
 MetaWindow*   meta_screen_get_mouse_window     (MetaScreen                 *screen,
                                                 MetaWindow                 *not_this_one);
 
-const MetaLogicalMonitor * meta_screen_get_current_logical_monitor (MetaScreen    *screen);
-const MetaLogicalMonitor * meta_screen_get_current_logical_monitor_for_pos (MetaScreen *screen,
-                                                                            int         x,
-                                                                            int         y);
-const MetaLogicalMonitor * meta_screen_get_logical_monitor_for_rect (MetaScreen    *screen,
-                                                                     MetaRectangle *rect);
-const MetaLogicalMonitor * meta_screen_calculate_logical_monitor_for_window (MetaScreen *screen,
-                                                                             MetaWindow *window);
-
-const MetaLogicalMonitor * meta_screen_get_logical_monitor_for_point (MetaScreen *screen,
+MetaLogicalMonitor * meta_screen_get_current_logical_monitor (MetaScreen    *screen);
+MetaLogicalMonitor * meta_screen_get_current_logical_monitor_for_pos (MetaScreen *screen,
                                                                       int         x,
                                                                       int         y);
-
-const MetaLogicalMonitor * meta_screen_get_monitor_neighbor (MetaScreen         *screen,
-                                                             int                 which_monitor,
-                                                             MetaScreenDirection dir);
+MetaLogicalMonitor * meta_screen_get_logical_monitor_for_rect (MetaScreen    *screen,
+                                                               MetaRectangle *rect);
+MetaLogicalMonitor * meta_screen_calculate_logical_monitor_for_window (MetaScreen *screen,
+                                                                       MetaWindow *window);
+
+MetaLogicalMonitor * meta_screen_get_logical_monitor_for_point (MetaScreen *screen,
+                                                                int         x,
+                                                                int         y);
+
+MetaLogicalMonitor * meta_screen_get_monitor_neighbor (MetaScreen         *screen,
+                                                       int                 which_monitor,
+                                                       MetaScreenDirection dir);
 
 void          meta_screen_update_workspace_layout (MetaScreen             *screen);
 void          meta_screen_update_workspace_names  (MetaScreen             *screen);
diff --git a/src/core/screen.c b/src/core/screen.c
index 1023fd7..d3ed1c4 100644
--- a/src/core/screen.c
+++ b/src/core/screen.c
@@ -1248,7 +1248,7 @@ root_cursor_prepare_at (MetaCursorSprite *cursor_sprite,
                         int               y,
                         MetaScreen       *screen)
 {
-  const MetaLogicalMonitor *logical_monitor;
+  MetaLogicalMonitor *logical_monitor;
 
   logical_monitor = meta_screen_get_logical_monitor_for_point (screen, x, y);
 
@@ -1408,7 +1408,7 @@ meta_screen_get_mouse_window (MetaScreen  *screen,
   return window;
 }
 
-const MetaLogicalMonitor *
+MetaLogicalMonitor *
 meta_screen_get_logical_monitor_for_rect (MetaScreen    *screen,
                                           MetaRectangle *rect)
 {
@@ -1461,7 +1461,7 @@ meta_screen_get_logical_monitor_for_rect (MetaScreen    *screen,
   return &logical_monitors[best_monitor];
 }
 
-const MetaLogicalMonitor *
+MetaLogicalMonitor *
 meta_screen_calculate_logical_monitor_for_window (MetaScreen *screen,
                                                   MetaWindow *window)
 {
@@ -1476,13 +1476,13 @@ int
 meta_screen_get_monitor_index_for_rect (MetaScreen    *screen,
                                         MetaRectangle *rect)
 {
-  const MetaLogicalMonitor *monitor;
+  MetaLogicalMonitor *monitor;
 
   monitor = meta_screen_get_logical_monitor_for_rect (screen, rect);
   return monitor->number;
 }
 
-const MetaLogicalMonitor *
+MetaLogicalMonitor *
 meta_screen_get_logical_monitor_for_point (MetaScreen *screen,
                                            int         x,
                                            int         y)
@@ -1510,7 +1510,7 @@ meta_screen_get_logical_monitor_for_point (MetaScreen *screen,
   return NULL;
 }
 
-const MetaLogicalMonitor *
+MetaLogicalMonitor *
 meta_screen_get_monitor_neighbor (MetaScreen         *screen,
                                   int                 which_monitor,
                                   MetaScreenDirection direction)
@@ -1558,7 +1558,7 @@ meta_screen_get_monitor_neighbor_index (MetaScreen         *screen,
                                         int                 which_monitor,
                                         MetaScreenDirection direction)
 {
-  const MetaLogicalMonitor *logical_monitor;
+  MetaLogicalMonitor *logical_monitor;
 
   logical_monitor = meta_screen_get_monitor_neighbor (screen,
                                                       which_monitor,
@@ -1566,7 +1566,7 @@ meta_screen_get_monitor_neighbor_index (MetaScreen         *screen,
   return logical_monitor ? logical_monitor->number : -1;
 }
 
-const MetaLogicalMonitor *
+MetaLogicalMonitor *
 meta_screen_get_current_logical_monitor (MetaScreen *screen)
 {
   MetaBackend *backend = meta_get_backend ();
@@ -1584,7 +1584,7 @@ meta_screen_get_current_logical_monitor (MetaScreen *screen)
   return &logical_monitors[monitor_index];
 }
 
-const MetaLogicalMonitor *
+MetaLogicalMonitor *
 meta_screen_get_current_logical_monitor_for_pos (MetaScreen *screen,
                                                  int         x,
                                                  int         y)