[NaCl SDK] Modifying size_t and int to off_t.

native_client_sdk/src/libraries/nacl_io/httpfs/http_fs.cc

 // Copyright 2013 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 "nacl_io/httpfs/http_fs.h"
 
 #include <assert.h>
 #include <ctype.h>
 #include <errno.h>
 #include <fcntl.h>
@@ skipping 372 matching lines @@
 Error HttpFs::LoadManifest(const std::string& manifest_name,
                            char** out_manifest) {
   Path manifest_path(manifest_name);
   ScopedNode manifest_node;
   *out_manifest = NULL;
 
   int error = Open(manifest_path, O_RDONLY, &manifest_node);
   if (error)
     return error;
 
-  size_t size;
+  off_t size;
   error = manifest_node->GetSize(&size);
   if (error)
     return error;
 
   char* text = new char[size + 1];
   int len;
   error = manifest_node->Read(HandleAttr(), text, size, &len);
   if (error)
     return error;
 
   text[len] = 0;
   *out_manifest = text;
   return 0;
 }
 
 std::string HttpFs::MakeUrl(const Path& path) {
   return url_root_ +
          (path.IsAbsolute() ? path.Range(1, path.Size()) : path.Join());
 }
 
 }  // namespace nacl_io