Add Content-Type header to net::ReportSender reports

net/http/transport_security_state.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_HTTP_TRANSPORT_SECURITY_STATE_H_
 #define NET_HTTP_TRANSPORT_SECURITY_STATE_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
+#include "base/strings/string_piece.h"
 #include "base/threading/non_thread_safe.h"
 #include "base/time/time.h"
 #include "net/base/expiring_cache.h"
 #include "net/base/hash_value.h"
 #include "net/base/net_export.h"
 #include "url/gurl.h"
 
 namespace net {
 
 class HostPortPair;
@@ skipping 219 matching lines @@
     // The URI reports are sent to if a valid OCSP response is not stapled
     GURL report_uri;
 
     // True if subdomains are subject to this policy
     bool include_subdomains;
   };
 
   // An interface for asynchronously sending HPKP violation reports.
   class NET_EXPORT ReportSenderInterface {
    public:
-    // Sends the given serialized |report| to |report_uri|.
-    virtual void Send(const GURL& report_uri, const std::string& report) = 0;
+    // Sends the given serialized |report| to |report_uri| with
+    // Content-Type header as specified in
+    // |content_type|. |content_type| should be non-empty.
+    virtual void Send(const GURL& report_uri,
+                      base::StringPiece content_type,
+                      base::StringPiece report) = 0;
 
     // Sets a callback to be called when report sending fails.
     virtual void SetErrorCallback(
         const base::Callback<void(const GURL&, int)>& error_callback) = 0;
 
    protected:
     virtual ~ReportSenderInterface() {}
   };
 
   // An interface for building and asynchronously sending reports when a
@@ skipping 322 matching lines @@
   // rate-limiting.
   ExpiringCache<std::string, bool, base::TimeTicks, std::less<base::TimeTicks>>
       sent_reports_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(TransportSecurityState);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_TRANSPORT_SECURITY_STATE_H_