Remove use_system_nspr build flag. It's not "officially" supported

BUG=none
R=wtc@chromium.org, phajdan.jr@chromium.org
TBR=willchan

Review URL: https://codereview.chromium.org/167693002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251527 0039d316-1c4b-4281-b951-d872f2087c98

base/base.gyp

@@ -234,11 +234,6 @@
             }],
           ],
         }],
-        ['use_system_nspr==1', {
-          'dependencies': [
-            'third_party/nspr/nspr.gyp:nspr',
-          ],
-        }],
       ],
       'sources': [
         'third_party/nspr/prcpucfg.h',
@@ -811,11 +806,6 @@
             'x11/edid_parser_x11_unittest.cc',
           ],
         }],
-        ['use_system_nspr==1', {
-          'dependencies': [
-            'third_party/nspr/nspr.gyp:nspr',
-          ],
-        }],
       ],  # conditions
       'target_conditions': [
         ['OS == "ios" and _toolset != "host"', {

base/base.gypi

@@ -930,11 +930,6 @@
           ['OS == "win" and >(nacl_untrusted_build)==1', {
               'sources/': [ ['exclude', '\\.h$'] ],
           }],
-          ['<(use_system_nspr)==1 and >(nacl_untrusted_build)==0', {
-            'sources/': [
-              ['exclude', '^third_party/nspr/'],
-            ],
-          }],
           ['<(toolkit_uses_gtk) == 1', {
             'sources!': [
               'x11/x11_error_tracker.cc',

base/third_party/nspr/nspr.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.
-
-{
-  'conditions': [
-    ['use_system_nspr==1', {
-      'targets': [
-        {
-          'target_name': 'nspr',
-          'type': 'none',
-          'toolsets': ['host', 'target'],
-          'variables': {
-            'headers_root_path': '.',
-            'header_filenames': [
-              'prcpucfg.h',
-              'prtime.h',
-              'prtypes.h',
-            ],
-          },
-          'includes': [
-            '../../../build/shim_headers.gypi',
-          ],
-          'direct_dependent_settings': {
-            'cflags': [
-              '<!@(pkg-config --cflags nspr)',
-            ],
-          },
-          'link_settings': {
-            'ldflags': [
-              '<!@(pkg-config --libs-only-L --libs-only-other nspr)',
-            ],
-            'libraries': [
-              '<!@(pkg-config --libs-only-l nspr)',
-            ],
-          },
-        }
-      ],
-    }],
-  ],
-}

build/common.gypi

@@ -997,9 +997,6 @@
     'use_goma%': '<(use_goma)',
     'gomadir%': '<(gomadir)',
 
-    # Use system nspr instead of the bundled one.
-    'use_system_nspr%': 0,
-
     # Use system protobuf instead of bundled one.
     'use_system_protobuf%': 0,
 

chrome/chrome_common.gypi

@@ -536,11 +536,6 @@
             'common/pepper_permission_util.cc',
           ],
         }],
-        ['use_system_nspr==1', {
-          'dependencies': [
-            '<(DEPTH)/base/third_party/nspr/nspr.gyp:nspr',
-          ],
-        }],
         ['enable_webrtc==0', {
           'sources!': [
             'common/media/webrtc_logging_messages.h',