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

content/common/devtools_messages.h

Index: content/common/devtools_messages.h
diff --git a/content/common/devtools_messages.h b/content/common/devtools_messages.h
index 8bafd0a53cfc4f5e07987c021297c579b0b5447b..7dc58e55bf545c3c2c3fca061749e958b1ca4be5 100644
--- a/content/common/devtools_messages.h
+++ b/content/common/devtools_messages.h
@@ -117,6 +117,11 @@ IPC_MESSAGE_ROUTED1(DevToolsAgentMsg_RequestNewWindow_ACK,
 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::vector<std::string> /* certificate */)
+
 
 //-----------------------------------------------------------------------------
 // These are messages sent from the browser to the renderer.