Inlining PPAPI_LIBS as its now the same everywhere.

ppapi/native_client/tests/ppapi_browser/ppb_audio/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'])
 
 nexe = env.ProgramNameForNmf('ppapi_ppb_audio')
 env.Alias('ppapi_ppb_audio${PROGSUFFIX}',
           ['$STAGING_DIR/%s${PROGSUFFIX}' % nexe])
 
 ppapi_ppb_audio_nexe = env.ComponentProgram(
     nexe,
     [ 'ppapi_ppb_audio.cc' ],
-    EXTRA_LIBS=['${PPAPI_LIBS}',
+    EXTRA_LIBS=['ppapi',
                 'ppapi_test_lib',
                 'platform',  # for CHECK
                 'pthread',
                 'gio',
                ])
 
 dest_copy = env.Publish(nexe, 'run',
                         ['ppapi_ppb_audio.html',
                          env.File('${SCONSTRUCT_DIR}/tools/browser_tester/'
                                   'browserdata/nacltest.js')
                         ])
 
 node = env.PPAPIBrowserTester('ppapi_ppb_audio_browser_test.out',
                               url='ppapi_ppb_audio.html',
                               nmf_names=['ppapi_ppb_audio'],
                               files=[ ppapi_ppb_audio_nexe,
                                       env.File('ppapi_ppb_audio.html')],
                               browser_flags=['--enable-pepper-testing'])
 
 # Though this tests passes locally, it does not pass on the Windows
 # and Linux buildbots, which do not have audio devices.  Although
 # StartPlayback() and StopPlayback() succeed, the audio callback is
 # not called.  However, this does work on the Mac buildbots.
 is_broken = env.PPAPIBrowserTesterIsBroken() or not env.Bit('host_mac')
 env.AddNodeToTestSuite(node,
                        ['chrome_browser_tests'],
                        'run_ppapi_ppb_audio_browser_test',
                        is_broken=is_broken)