[mutter] DisplayConfig: Make naming convention consistent

[Jonas Ådahl <jadahl src gnome org>]

commit 9755cd469c9d31f9b8c1c5cf735ef8c7b7a6d54c
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Apr 6 13:09:28 2017 +0800

    DisplayConfig: Make naming convention consistent
    
    Always use hyphens as delimit words in property keys. Underscore to
    delimit words in method arguments.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777732

 src/backends/meta-monitor-manager.c    |    6 +++---
 src/org.gnome.Mutter.DisplayConfig.xml |   10 +++++-----
 2 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/src/backends/meta-monitor-manager.c b/src/backends/meta-monitor-manager.c
index 7bd9afa..faaa3ee 100644
--- a/src/backends/meta-monitor-manager.c
+++ b/src/backends/meta-monitor-manager.c
@@ -1456,13 +1456,13 @@ meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
           gboolean is_underscanning = meta_monitor_is_underscanning (monitor);
 
           g_variant_builder_add (&monitor_properties_builder, "{sv}",
-                                 "is_underscanning",
+                                 "is-underscanning",
                                  g_variant_new_boolean (is_underscanning));
         }
 
       is_builtin = meta_monitor_is_laptop_panel (monitor);
       g_variant_builder_add (&monitor_properties_builder, "{sv}",
-                             "is_builtin",
+                             "is-builtin",
                              g_variant_new_boolean (is_builtin));
 
       g_variant_builder_add (&monitors_builder, MONITOR_FORMAT,
@@ -1544,7 +1544,7 @@ meta_monitor_manager_handle_get_current_state (MetaDBusDisplayConfig *skeleton,
                              max_screen_height);
 
       g_variant_builder_add (&properties_builder, "{sv}",
-                             "max_screen_size",
+                             "max-screen-size",
                              g_variant_builder_end (&max_screen_size_builder));
     }
 
diff --git a/src/org.gnome.Mutter.DisplayConfig.xml b/src/org.gnome.Mutter.DisplayConfig.xml
index c916b36..d788577 100644
--- a/src/org.gnome.Mutter.DisplayConfig.xml
+++ b/src/org.gnome.Mutter.DisplayConfig.xml
@@ -323,15 +323,15 @@
            * d preferred scale: scale preferred as per calculations
            * u flags: mode flags (see below)
        * a{sv} properties: optional properties, including:
-           - "width_mm" (i): physical width of monitor in millimeters
-           - "height_mm" (i): physical height of monitor in millimeters
-           - "is_underscanning" (b): whether underscanning is enabled
+           - "width-mm" (i): physical width of monitor in millimeters
+           - "height-mm" (i): physical height of monitor in millimeters
+           - "is-underscanning" (b): whether underscanning is enabled
                                      (absence of this means underscanning
                                      not being supported)
-           - "max_screen_size" (ii): the maximum size a screen may have
+           - "max-screen-size" (ii): the maximum size a screen may have
                                      (absence of this means unlimited screen
                                      size)
-           - "is_builtin" (b): whether the monitor is built in, e.g. a
+           - "is-builtin" (b): whether the monitor is built in, e.g. a
                                laptop panel (absence of this means it is
                                not built in)