[NaCl SDK] Add HTTP mount.

native_client_sdk/src/libraries/nacl_mounts/mount_http.h

 /* 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.
  */
-#ifndef LIBRARIES_NACL_MOUNTS_MOUNT_HTML5FS_H_
-#define LIBRARIES_NACL_MOUNTS_MOUNT_HTML5FS_H_
 
-#include <pthread.h>
+#ifndef LIBRARIES_NACL_MOUNTS_MOUNT_HTTP_H_
+#define LIBRARIES_NACL_MOUNTS_MOUNT_HTTP_H_
+
+#include <string>
 #include "nacl_mounts/mount.h"
 #include "nacl_mounts/pepper_interface.h"
 
 class MountNode;
 
-class MountHtml5Fs: public Mount {
+class MountHttp : public Mount {
  public:
   virtual MountNode *Open(const Path& path, int mode);
   virtual int Close(MountNode* node);
   virtual int Unlink(const Path& path);
   virtual int Mkdir(const Path& path, int permissions);
   virtual int Rmdir(const Path& path);
   virtual int Remove(const Path& path);
 
-  PP_Resource filesystem_resource() { return filesystem_resource_; }
+  PP_Resource MakeUrlRequestInfo(const std::string& url,
+                                 const char* method,
+                                 StringMap_t* additional_headers);
 
  protected:
-  MountHtml5Fs();
+  MountHttp();
 
   virtual bool Init(int dev, StringMap_t& args, PepperInterface* ppapi);
   virtual void Destroy();
 
-  bool IsFilesystemOpen();
-
  private:
-  static void FilesystemOpenCallbackThunk(void* user_data, int32_t result);
-  void FilesystemOpenCallback(int32_t result);
-
-  PP_Resource filesystem_resource_;
-  bool filesystem_open_;  // protected by lock_.
+  std::string url_root_;
+  StringMap_t headers_;
+  bool allow_cors_;
+  bool allow_credentials_;
 
   friend class Mount;
 };
 
-#endif  // LIBRARIES_NACL_MOUNTS_MOUNT_HTML5FS_H_
+#endif  // LIBRARIES_NACL_MOUNTS_MOUNT_HTTP_H_