Add the PPAPI X509 Certificate interface and implementation.

webkit/plugins/ppapi/plugin_delegate.h

Index: webkit/plugins/ppapi/plugin_delegate.h
diff --git a/webkit/plugins/ppapi/plugin_delegate.h b/webkit/plugins/ppapi/plugin_delegate.h
index 9de72bc48a7d7c9bf4f6535dac3b754147a0ba6c..1c01f37395384151332a29b4bb2cfbfeb251ce89 100644
--- a/webkit/plugins/ppapi/plugin_delegate.h
+++ b/webkit/plugins/ppapi/plugin_delegate.h
@@ -55,6 +55,7 @@ class CommandBuffer;
 namespace ppapi {
 struct DeviceRefData;
 struct Preferences;
+class PPB_X509Certificate_Fields;
 }
 
 namespace skia {
@@ -489,6 +490,11 @@ class PluginDelegate {
   virtual void RemoveNetworkListObserver(
       webkit_glue::NetworkListObserver* observer) = 0;
 
+  // For PPB_Flash_X509_Certificate
+  virtual bool X509CertificateParseDER(
+      const std::vector<char>& der,
+      ::ppapi::PPB_X509Certificate_Fields* fields) = 0;
+
   // Show the given context menu at the given position (in the plugin's
   // coordinates).
   virtual int32_t ShowContextMenu(