AU: Beginnings of delta support

src/platform/update_engine/http_fetcher.h

 // Copyright (c) 2009 The Chromium OS 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 UPDATE_ENGINE_HTTP_FETCHER_H__
-#define UPDATE_ENGINE_HTTP_FETCHER_H__
+#ifndef CHROMEOS_PLATFORM_UPDATE_ENGINE_HTTP_FETCHER_H__
+#define CHROMEOS_PLATFORM_UPDATE_ENGINE_HTTP_FETCHER_H__
 
 #include <string>
+#include <vector>
 #include <glib.h>
 #include "base/basictypes.h"
 
 // This class is a simple wrapper around an HTTP library (libcurl). We can
 // easily mock out this interface for testing.
 
 // Implementations of this class should use asynchronous i/o. They can access
 // the glib main loop to request callbacks when timers or file descriptors
 // change.
 
 namespace chromeos_update_engine {
 
 class HttpFetcherDelegate;
 
 class HttpFetcher {
  public:
-  HttpFetcher() : delegate_(NULL) {}
+  HttpFetcher() : post_data_set_(false), delegate_(NULL) {}
   virtual ~HttpFetcher() {}
   void set_delegate(HttpFetcherDelegate* delegate) {
     delegate_ = delegate;
   }
   HttpFetcherDelegate* delegate() const {
     return delegate_;
   }
 
   // Optional: Post data to the server. The HttpFetcher should make a copy
   // of this data and upload it via HTTP POST during the transfer.
@@ skipping 44 matching lines @@
                              const char* bytes,
                              int length) = 0;
 
   // Called when the transfer has completed successfully or been somehow
   // aborted.
   virtual void TransferComplete(HttpFetcher* fetcher, bool successful) = 0;
 };
 
 }  // namespace chromeos_update_engine
 
-#endif  // UPDATE_ENGINE_HTTP_FETCHER_H__
+#endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_HTTP_FETCHER_H__