Set datapresent string to contain precisely those field types available in stored Autofill data.

chrome/browser/autofill/autofill_download.h

 // Copyright (c) 2011 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 CHROME_BROWSER_AUTOFILL_AUTOFILL_DOWNLOAD_H_
 #define CHROME_BROWSER_AUTOFILL_AUTOFILL_DOWNLOAD_H_
 #pragma once
 
 #include <stddef.h>
 #include <list>
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/memory/scoped_vector.h"
 #include "base/time.h"
+#include "chrome/browser/autofill/autofill_type.h"
 #include "chrome/common/net/url_fetcher.h"
 
 class AutofillMetrics;
 class FormStructure;
 class GURL;
 class Profile;
 
 namespace net {
 class URLRequestStatus;
 }
@@ skipping 36 matching lines @@
 
   // |observer| - observer to notify on successful completion or error.
   void SetObserver(AutofillDownloadManager::Observer *observer);
 
   // Starts a query request to Autofill servers. The observer is called with the
   // list of the fields of all requested forms.
   // |forms| - array of forms aggregated in this request.
   bool StartQueryRequest(const ScopedVector<FormStructure>& forms,
                          const AutofillMetrics& metric_logger);
 
-  // Start upload request if necessary. The probability of request going
-  // over the wire are GetPositiveUploadRate() if it was matched by
-  // Autofill, GetNegativeUploadRate() otherwise. Observer will be called
-  // even if there was no actual trip over the wire.
-  // |form| - form sent in this request.
-  // |form_was_matched| - true if form was matched by the Autofill.
-  bool StartUploadRequest(const FormStructure& form, bool form_was_matched);
+  // Starts an upload request for the given |form|, unless throttled by the
+  // server. The probability of the request going over the wire is
+  // GetPositiveUploadRate() if |form_was_autofilled| is true, or
+  // GetNegativeUploadRate() otherwise. The observer will be called even if
+  // there was no actual trip over the wire.
+  // |available_field_types| should contain the types for which we have data
+  // stored on the local client.
+  bool StartUploadRequest(const FormStructure& form,
+                          bool form_was_autofilled,
+                          const FieldTypeSet& available_field_types);
 
   // Cancels pending request.
   // |form_signature| - signature of the form being cancelled. Warning:
   // for query request if more than one form sent in the request, all other
   // forms will be cancelled as well.
   // |request_type| - type of the request.
   bool CancelRequest(const std::string& form_signature,
                      AutofillRequestType request_type);
 
   // Probability of the form upload. Between 0 (no upload) and 1 (upload all).
@@ skipping 73 matching lines @@
   // |negative_upload_rate_| for non matched.
   double positive_upload_rate_;
   double negative_upload_rate_;
 
   // Needed for unit-test.
   int fetcher_id_for_unittest_;
 };
 
 #endif  // CHROME_BROWSER_AUTOFILL_AUTOFILL_DOWNLOAD_H_