Send certificates to devtools when it's open instead of using certId

content/common/devtools_messages.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.
 
 // Developer tools consist of the following parts:
 //
 // DevToolsAgent lives in the renderer of an inspected page and provides access
 // to the pages resources, DOM, v8 etc. by means of IPC messages.
 //
 // DevToolsClient is a thin delegate that lives in the tools front-end
@@ skipping 99 matching lines @@
                     bool /* success */)
 
 //-----------------------------------------------------------------------------
 // These are messages sent from renderer's DevToolsAgent to browser.
 
 // Requests new DevTools window being opened for frame in the same process
 // with given routing id.
 IPC_MESSAGE_ROUTED1(DevToolsAgentHostMsg_RequestNewWindow,
                     int /* frame_route_id */)
 
+// Requests the certificate viewer be shown for the given serialized X509
+// certificate.
+IPC_MESSAGE_ROUTED1(DevToolsAgentHostMsg_ShowCertificateViewer,
+                    std::string /* certificate */)
+
 
 //-----------------------------------------------------------------------------
 // These are messages sent from the browser to the renderer.
 
 // RenderViewHostDelegate::RenderViewCreated method sends this message to a
 // new renderer to notify it that it will host developer tools UI and should
 // set up all neccessary bindings and create DevToolsClient instance that
 // will handle communication with inspected page DevToolsAgent.
 IPC_MESSAGE_ROUTED1(DevToolsMsg_SetupDevToolsClient,
                     std::string /* compatibility script */)
 
 
 //-----------------------------------------------------------------------------
 // These are messages sent from the renderer to the browser.
 
 // Transport from Inspector frontend to frontend host.
 IPC_MESSAGE_ROUTED1(DevToolsHostMsg_DispatchOnEmbedder,
                     std::string /* message */)