Remove use_system_ssl GYP flag

build/linux/system.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'conditions': [
       ['sysroot!=""', {
         'pkg-config': './pkg-config-wrapper "<(sysroot)" "<(target_arch)"',
       }, {
         'pkg-config': 'pkg-config'
       }],
     ],
 
     'linux_link_libgps%': 0,
     'linux_link_libpci%': 0,
     'linux_link_libspeechd%': 0,
     'linux_link_libbrlapi%': 0,
   },
   'conditions': [
-    [ 'os_posix==1 and OS!="mac"', {
-      'variables': {
-        # We use our own copy of libssl3, although we still need to link against
-        # the rest of NSS.
-        'use_system_ssl%': 0,
-      },
-    }, {
-      'variables': {
-        'use_system_ssl%': 1,
-      },
-    }],
     [ 'chromeos==0', {
       # Hide GTK and related dependencies for Chrome OS, so they won't get
       # added back to Chrome OS. Don't try to use GTK on Chrome OS.
       'targets': [
         {
           'target_name': 'gdk',
           'type': 'none',
           'conditions': [
             ['_toolset=="target"', {
               'direct_dependent_settings': {
@@ skipping 664 matching lines @@
       'target_name': 'ssl',
       'type': 'none',
       'conditions': [
         ['_toolset=="target"', {
           'conditions': [
             ['use_openssl==1', {
               'dependencies': [
                 '../../third_party/openssl/openssl.gyp:openssl',
               ],
             }],
-            ['use_openssl==0 and use_system_ssl==0', {
+            ['use_openssl==0', {
               'dependencies': [
                 '../../net/third_party/nss/ssl.gyp:libssl',
               ],
               'direct_dependent_settings': {
                 'include_dirs+': [
                   # We need for our local copies of the libssl3 headers to come
                   # before other includes, as we are shadowing system headers.
                   '<(DEPTH)/net/third_party/nss/ssl',
                 ],
                 'cflags': [
                   '<!@(<(pkg-config) --cflags nss)',
                 ],
               },
               'link_settings': {
                 'ldflags': [
                   '<!@(<(pkg-config) --libs-only-L --libs-only-other nss)',
                 ],
                 'libraries': [
                   '<!@(<(pkg-config) --libs-only-l nss | sed -e "s/-lssl3//")',
                 ],
               },
             }],
-            ['use_openssl==0 and use_system_ssl==1', {
-              'direct_dependent_settings': {
-                'cflags': [
-                  '<!@(<(pkg-config) --cflags nss)',
-                ],
-                'defines': [
-                  'USE_SYSTEM_SSL',
-                ],
-              },
-              'link_settings': {
-                'ldflags': [
-                  '<!@(<(pkg-config) --libs-only-L --libs-only-other nss)',
-                ],
-                'libraries': [
-                  '<!@(<(pkg-config) --libs-only-l nss)',
-                ],
-              },
-            }],
             ['use_openssl==0 and clang==1', {
               'direct_dependent_settings': {
                 'cflags': [
                   # There is a broken header guard in /usr/include/nss/secmod.h:
                   # https://bugzilla.mozilla.org/show_bug.cgi?id=884072
                   '-Wno-header-guard',
                 ],
               },
             }],
           ]
@@ skipping 131 matching lines @@
             ],
             'libraries': [
               '<!@(pkg-config --libs-only-l xrandr)',
             ],
           },
         }],
       ],
     },
   ],
 }