[epiphany] Use /etc/os-release to set distributor name

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 554a375e8a90d9fb0cffb10d3248b2a05767b456
Author: Jan-Michael Brummer <jan brummer tabos org>
Date:   Wed Dec 19 14:07:38 2018 +0100

    Use /etc/os-release to set distributor name
    
    Fixes: https://gitlab.gnome.org/GNOME/epiphany/issues/586

 meson.build       | 9 ++++++++-
 meson_options.txt | 6 ------
 2 files changed, 8 insertions(+), 7 deletions(-)
---
diff --git a/meson.build b/meson.build
index 48b5505bb..29e266b27 100644
--- a/meson.build
+++ b/meson.build
@@ -8,6 +8,13 @@ project('epiphany', 'c',
 gnome = import('gnome')
 i18n = import('i18n')
 
+r = run_command('grep', '-Po', '^NAME=\K.*', '/etc/os-release')
+if r.returncode() == 0
+  distributor_name = r.stdout().strip()
+else
+  distributor_name = 'GNOME Web'
+endif
+
 prefix = get_option('prefix')
 datadir = join_paths(prefix, get_option('datadir'))
 libdir = join_paths(prefix, get_option('libdir'))
@@ -24,7 +31,7 @@ iso_codes_prefix = iso_codes.get_pkgconfig_variable('prefix')
 
 conf = configuration_data()
 conf.set_quoted('BUILD_ROOT', meson.build_root())
-conf.set_quoted('DISTRIBUTOR_NAME', get_option('distributor_name'))
+conf.set_quoted('DISTRIBUTOR_NAME', distributor_name)
 conf.set_quoted('EPHY_WEB_EXTENSIONS_DIR', webextensionsdir)
 conf.set_quoted('GETTEXT_PACKAGE', meson.project_name())
 conf.set_quoted('ISO_CODES_PREFIX', iso_codes_prefix)
diff --git a/meson_options.txt b/meson_options.txt
index f81ea8850..4a61f9597 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -4,12 +4,6 @@ option('developer_mode',
   description: 'Enable developer mode'
 )
 
-option('distributor_name',
-  type: 'string',
-  value: 'GNOME Web',
-  description: 'Distributor name displayed on process crash page'
-)
-
 option('tech_preview',
   type: 'boolean',
   value: false,