Prevent URLFetcher::AppendChunkedData from dereferencing NULL pointers.

net/url_request/url_request.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_URL_REQUEST_URL_REQUEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 28 matching lines @@
 namespace base {
 class Value;
 
 namespace debug {
 class StackTrace;
 }  // namespace debug
 }  // namespace base
 
 namespace net {
 
-class ChunkedUploadDataStream;
 class CookieOptions;
 class HostPortPair;
 class IOBuffer;
 struct LoadTimingInfo;
 struct RedirectInfo;
 class SSLCertRequestInfo;
 class SSLInfo;
 class SSLPrivateKey;
 class UploadDataStream;
 class URLRequestContext;
@@ skipping 264 matching lines @@
   // The referrer policy to apply when updating the referrer during redirects.
   // The referrer policy may only be changed before Start() is called.
   ReferrerPolicy referrer_policy() const { return referrer_policy_; }
   void set_referrer_policy(ReferrerPolicy referrer_policy);
 
   // Sets the delegate of the request.  This is only to allow creating a request
   // before creating its delegate.  |delegate| must be non-NULL and the request
   // must not yet have a Delegate set.
   void set_delegate(Delegate* delegate);
 
-  // Indicates that the request body should be sent using chunked transfer
-  // encoding. This method may only be called before Start() is called.
-  void EnableChunkedUpload();
-
-  // Appends the given bytes to the request's upload data to be sent
-  // immediately via chunked transfer encoding. When all data has been added,
-  // set |is_last_chunk| to true to indicate the end of upload data.  All chunks
-  // but the last must have |bytes_len| > 0.
-  //
-  // This method may be called only after calling EnableChunkedUpload().
-  //
-  // Despite the name of this method, over-the-wire chunk boundaries will most
-  // likely not match the "chunks" appended with this function.
-  void AppendChunkToUpload(const char* bytes,
-                           int bytes_len,
-                           bool is_last_chunk);
-
   // Sets the upload data.
   void set_upload(scoped_ptr<UploadDataStream> upload);
 
   // Gets the upload data.
   const UploadDataStream* get_upload() const;
 
   // Returns true if the request has a non-empty message body to upload.
   bool has_upload() const;
 
   // Set or remove a extra request header.  These methods may only be called
@@ skipping 415 matching lines @@
   // cookie store, socket pool, etc.)
   const URLRequestContext* context_;
 
   NetworkDelegate* network_delegate_;
 
   // Tracks the time spent in various load states throughout this request.
   BoundNetLog net_log_;
 
   scoped_ptr<URLRequestJob> job_;
   scoped_ptr<UploadDataStream> upload_data_stream_;
-  // TODO(mmenke):  Make whether or not an upload is chunked transparent to the
-  // URLRequest.
-  ChunkedUploadDataStream* upload_chunked_data_stream_;
 
   std::vector<GURL> url_chain_;
   GURL first_party_for_cookies_;
   url::Origin initiator_;
   GURL delegate_redirect_url_;
   std::string method_;  // "GET", "POST", etc. Should be all uppercase.
   std::string referrer_;
   ReferrerPolicy referrer_policy_;
   FirstPartyURLPolicy first_party_url_policy_;
   HttpRequestHeaders extra_request_headers_;
@@ skipping 86 matching lines @@
   HostPortPair proxy_server_;
 
   scoped_ptr<const base::debug::StackTrace> stack_trace_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_