[NaCl SDK] nacl_io: Always create directory node in http filesystem root.

native_client_sdk/src/libraries/nacl_io/httpfs/http_fs_node.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_node.h"
 
 #include <assert.h>
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
@@ skipping 214 matching lines @@
 
 HttpFsNode::HttpFsNode(Filesystem* filesystem,
                        const std::string& url,
                        bool cache_content)
     : Node(filesystem),
       url_(url),
       buffer_(NULL),
       buffer_len_(0),
       cache_content_(cache_content),
       has_cached_size_(false) {
-}
-
-void HttpFsNode::SetMode(int mode) {
-  stat_.st_mode = mode;
+  // http nodes are read-only by default
+  SetMode(S_IRALL);
 }
 
 Error HttpFsNode::GetStat_Locked(struct stat* stat) {
   // Assume we need to 'HEAD' if we do not know the size, otherwise, assume
   // that the information is constant.  We can add a timeout if needed.
   HttpFs* filesystem = static_cast<HttpFs*>(filesystem_);
   if (!has_cached_size_ || !filesystem->cache_stat_) {
     StringMap_t headers;
     ScopedResource loader(filesystem_->ppapi());
     ScopedResource request(filesystem_->ppapi());
@@ skipping 41 matching lines @@
       if (error)
         return error;
 
       SetCachedSize(bytes_read);
     }
 
     stat_.st_atime = 0;  // TODO(binji): Use "Last-Modified".
     stat_.st_mtime = 0;
     stat_.st_ctime = 0;
 
-    stat_.st_mode |= S_IFREG;
+    SetType(S_IFREG);
   }
 
   // Fill the stat structure if provided
   if (stat)
     *stat = stat_;
 
   return 0;
 }
 
 Error HttpFsNode::OpenUrl(const char* method,
@@ skipping 362 matching lines @@
     assert(bytes_read <= bytes_to_read);
     bytes_to_read -= bytes_read;
     out_buffer += bytes_read;
   }
 
   *out_bytes = count;
   return 0;
 }
 
 }  // namespace nacl_io