Add the PPAPI X509 Certificate interface and implementation.

content/browser/renderer_host/pepper_message_filter.h

Index: content/browser/renderer_host/pepper_message_filter.h
diff --git a/content/browser/renderer_host/pepper_message_filter.h b/content/browser/renderer_host/pepper_message_filter.h
index ae64d2696da0e50c1ff8d38b80e715dca2e52fb3..d63a73000fd08116ed568ab527f427d8fb35d5b0 100644
--- a/content/browser/renderer_host/pepper_message_filter.h
+++ b/content/browser/renderer_host/pepper_message_filter.h
@@ -44,6 +44,7 @@ class HostResolver;
 
 namespace ppapi {
 struct HostPortPair;
+class PPB_X509Certificate_Fields;
 }
 
 // This class is used in two contexts, both supporting PPAPI plugins. The first
@@ -202,6 +203,10 @@ class PepperMessageFilter
                              const ppapi::HostPortPair& host_port,
                              const PP_HostResolver_Private_Hint& hint);
 
+  void OnX509CertificateParseDER(const std::vector<char>& der,
+                                 bool* succeeded,
+                                 ppapi::PPB_X509Certificate_Fields* result);
+
   // Callback when the font list has been retrieved on a background thread.
   void GetFontFamiliesComplete(IPC::Message* reply_msg,
                                scoped_ptr<base::ListValue> result);