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 ab388cccc12276df0ffb31fdbd70fcd4edabdd3e..f56f679221abdce9ee44177e76874ea0691732e8 100644
--- a/webkit/plugins/ppapi/plugin_delegate.h
+++ b/webkit/plugins/ppapi/plugin_delegate.h
@@ -59,6 +59,7 @@ class PPB_HostResolver_Shared;
 struct DeviceRefData;
 struct HostPortPair;
 struct Preferences;
+class PPB_X509Certificate_Fields;
 }
 
 namespace skia {
@@ -505,6 +506,11 @@ 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(