Pepper: Move GetSandboxISA() to PPB_NaCl_Private.

ppapi/native_client/src/trusted/plugin/pnacl_coordinator.cc

 // 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.
 
 #include "ppapi/native_client/src/trusted/plugin/pnacl_coordinator.h"
 
 #include <utility>
 #include <vector>
 
 #include "native_client/src/include/checked_cast.h"
@@ skipping 490 matching lines @@
       plugin_->nacl_interface()->GetNexeFd(
           plugin_->pp_instance(),
           streaming_downloader_->full_url().c_str(),
           // TODO(dschuff): Get this value from the pnacl json file after it
           // rolls in from NaCl.
           1,
           pnacl_options_.opt_level(),
           parser.GetHeader("last-modified").c_str(),
           parser.GetHeader("etag").c_str(),
           PP_FromBool(parser.CacheControlNoStore()),
-          GetSandboxISA(),
+          plugin_->nacl_interface()->GetSandboxISA(),
           "", // No extra compile flags yet.
           &is_cache_hit_,
           temp_nexe_file_->existing_handle(),
           cb.pp_completion_callback());
   if (nexe_fd_err < PP_OK_COMPLETIONPENDING) {
     ReportPpapiError(PP_NACL_ERROR_PNACL_CREATE_TEMP, nexe_fd_err,
                      nacl::string("Call to GetNexeFd failed"));
   }
 }
 
@@ skipping 168 matching lines @@
                                   temp_nexe_file_.get(),
                                   invalid_desc_wrapper_.get(),
                                   &error_info_,
                                   resources_.get(),
                                   &pnacl_options_,
                                   this,
                                   plugin_);
 }
 
 }  // namespace plugin