Adds support for the <keygen> tag for client certificate enrollment...

chrome/common/render_messages_internal.h

 // Copyright (c) 2009 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.
 
 // This header is meant to be included in multiple passes, hence no traditional
 // header guard.
 // See ipc_message_macros.h for explanation of the macros and passes.
 
 #include <map>
 #include <string>
@@ skipping 1905 matching lines @@
   IPC_MESSAGE_CONTROL2(ViewHostMsg_SocketStream_SendData,
                        int /* socket_id */,
                        std::vector<char> /* data */)
 
   // Request to close the Socket Stream.
   // The browser will send ViewMsg_SocketStream_Closed back when the Socket
   // Stream is completely closed.
   IPC_MESSAGE_CONTROL1(ViewHostMsg_SocketStream_Close,
                        int /* socket_id */)
 
+  //---------------------------------------------------------------------------
+  // Request for cryptographic operation messages:
+  // These are messages from the renderer to the browser to perform a
+  // cryptographic operation.
+
+  // Asks the browser process to generate a keypair for grabbing a client
+  // certificate from a CA (<keygen> tag), and returns the signed public
+  // key and challenge string.
+  IPC_SYNC_MESSAGE_CONTROL3_1(ViewHostMsg_Keygen,
+                              uint32 /* key size index */,
+                              std::string /* challenge string */,
+                              GURL /* URL of requestor */,
+                              std::string /* signed public key and challenge */)
 IPC_END_MESSAGES(ViewHost)