Use the exact-width integer types defined in <stdint.h> rather than

net/base/elements_upload_data_stream.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 NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_
 #define NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_
 
 #include "base/basictypes.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "net/base/net_export.h"
 #include "net/base/upload_data_stream.h"
 
 namespace net {
 
 class DrainableIOBuffer;
 class IOBuffer;
 class UploadElementReader;
 
 // A non-chunked UploadDataStream consisting of one or more UploadElements.
 class NET_EXPORT ElementsUploadDataStream : public UploadDataStream {
  public:
   ElementsUploadDataStream(ScopedVector<UploadElementReader> element_readers,
-                           int64 identifier);
+                           int64_t identifier);
 
   ~ElementsUploadDataStream() override;
 
   // Creates an ElementsUploadDataStream with a single reader.  Returns a
   // scoped_ptr<UploadDataStream> for ease of use.
   static scoped_ptr<UploadDataStream> CreateWithReader(
       scoped_ptr<UploadElementReader> reader,
-      int64 identifier);
+      int64_t identifier);
 
  private:
   // UploadDataStream implementation.
   bool IsInMemory() const override;
   const ScopedVector<UploadElementReader>* GetElementReaders() const override;
   int InitInternal() override;
   int ReadInternal(IOBuffer* buf, int buf_len) override;
   void ResetInternal() override;
 
   // Runs Init() for all element readers.
@@ skipping 30 matching lines @@
   bool read_failed_;
 
   base::WeakPtrFactory<ElementsUploadDataStream> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ElementsUploadDataStream);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_ELEMENTS_UPLOAD_DATA_STREAM_H_