Inlining PPAPI_LIBS as its now the same everywhere.

ppapi/native_client/tests/ppapi_browser/ppp_instance/nacl.scons

 # -*- python -*-
 # Copyright (c) 2012 The Native Client Authors.  All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # This test uses ppapi_test_lib.
 
 Import('env')
 
 env.Prepend(CPPDEFINES=['XP_UNIX'])
 env.Replace(TEST_DIR='${SOURCE_ROOT}/ppapi/native_client/tests/ppapi_browser/' +
                      'ppp_instance')
 
 nexe = env.ProgramNameForNmf('ppapi_ppp_instance')
 env.Alias('ppapi_ppp_instance${PROGSUFFIX}',
           ['$STAGING_DIR/%s${PROGSUFFIX}' % nexe])
 
 ppapi_ppp_instance_nexe = env.ComponentProgram(
     nexe,
     ['ppapi_ppp_instance.cc'],
-    EXTRA_LIBS=['${PPAPI_LIBS}',
+    EXTRA_LIBS=['ppapi',
                 'ppapi_test_lib',
                 'platform',  # for CHECK
                 'pthread',
                 'gio',
                 ])
 
 env.Publish(nexe, 'run',
             ['ppapi_ppp_instance.html',
              'ppapi_ppp_instance.js'])
 
 node = env.PPAPIBrowserTester('ppapi_ppp_instance_browser_test.out',
                               url='ppapi_ppp_instance.html',
                               nmf_names=['ppapi_ppp_instance'],
                               files=env.ExtractPublishedFiles(nexe))
 
 env.AddNodeToTestSuite(node,
                        ['chrome_browser_tests'],
                        'run_ppapi_ppp_instance_browser_test',
                        is_broken=env.PPAPIBrowserTesterIsBroken())