Fixing path for srpcdif testing.

ppapi/native_client/src/shared/ppapi_proxy/build.scons

 # -*- python -*-
 # Copyright 2011 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.
 
 import os
 
 Import('env')
 
 # To get generated include files.
@@ skipping 135 matching lines @@
                  'ppp_rpc_client.cc',
                  'upcall_server.cc',
                  common_obj,])
 
 # Do a recursive diff of all files found in the first source directory against
 # all the checked in versions of the files
 node = env.CommandTest(
   'srpc_diff.out',
   command=['${PYTHON}', '${SOURCE_ROOT}/native_client/tools/diff.py', '-arv',
            '${TARGET_ROOT}/srpcgen/src',
-           '${SOURCE_ROOT}/native_client/src'])
+           '${SOURCE_ROOT}/ppapi/native_client/src'])
 
 # Add a dependency on the 'srpcdif' alias for the previous command
 env.Depends(node, Alias('srpcdif'))
 
 # Create an alias for the command and add it to the standard small test.
 # This test verifies that the checked in SRPC generated files are
 # actually up to date.  We ignore ARM which generates false negatives.
 # This is okay, since all try/builds should reproduce the same result
 # this is a check on what is in source control, and generated files are
 # platform independent.
 if not env.Bit('target_arm'):
   env.AddNodeToTestSuite(node, ['small_tests'], 'run_srpcgen_test')