Clean up a few more unused globals.

components/autofill/core/browser/form_structure.cc

 // Copyright 2013 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.
 
 #include "components/autofill/core/browser/form_structure.h"
 
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
@@ skipping 27 matching lines @@
 const char kAttributeAcceptedFeatures[] = "accepts";
 const char kAttributeAutofillUsed[] = "autofillused";
 const char kAttributeAutofillType[] = "autofilltype";
 const char kAttributeClientVersion[] = "clientversion";
 const char kAttributeDataPresent[] = "datapresent";
 const char kAttributeFieldID[] = "fieldid";
 const char kAttributeFieldType[] = "fieldtype";
 const char kAttributeFormSignature[] = "formsignature";
 const char kAttributeName[] = "name";
 const char kAttributeSignature[] = "signature";
-const char kAttributeUrlprefixSignature[] = "urlprefixsignature";
 const char kAcceptedFeaturesExperiment[] = "e"; // e=experiments
 const char kClientVersion[] = "6.1.1715.1442/en (GGLL)";
 const char kXMLDeclaration[] = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>";
 const char kXMLElementAutofillQuery[] = "autofillquery";
 const char kXMLElementAutofillUpload[] = "autofillupload";
 const char kXMLElementFieldAssignments[] = "fieldassignments";
 const char kXMLElementField[] = "field";
 const char kXMLElementFields[] = "fields";
 const char kXMLElementForm[] = "form";
 const char kBillingMode[] = "billing";
@@ skipping 1142 matching lines @@
        field != fields_.end(); ++field) {
     FieldTypeGroup field_type_group = (*field)->Type().group();
     if (field_type_group == CREDIT_CARD)
       (*field)->set_section((*field)->section() + "-cc");
     else
       (*field)->set_section((*field)->section() + "-default");
   }
 }
 
 }  // namespace autofill