Use correct slot id for client certs in network config.

chrome/browser/chromeos/options/cert_library.h

Index: chrome/browser/chromeos/options/cert_library.h
diff --git a/chrome/browser/chromeos/options/cert_library.h b/chrome/browser/chromeos/options/cert_library.h
index e5d1cb0aca75765feb511dc411363345f4b3d538..000652761a27a4357af9f358d840cc06af70bbd2 100644
--- a/chrome/browser/chromeos/options/cert_library.h
+++ b/chrome/browser/chromeos/options/cert_library.h
@@ -63,16 +63,13 @@ class CertLibrary : public CertLoader::Observer {
   // Returns true if the TPM is available for hardware-backed certificates.
   bool IsHardwareBacked() const;
 
-  // Returns the id of the slot that contains the user certificates.
-  std::string GetTPMSlotID() const;
-
   // Retruns the number of certificates available for |type|.
   int NumCertificates(CertType type) const;
 
   // Retreives the certificate property for |type| at |index|.
   base::string16 GetCertDisplayStringAt(CertType type, int index) const;
   std::string GetServerCACertPEMAt(int index) const;
-  std::string GetUserCertPkcs11IdAt(int index) const;
+  std::string GetUserCertPkcs11IdAt(int index, int* slot_id) const;
   bool IsCertHardwareBackedAt(CertType type, int index) const;
 
   // Returns the index of a Certificate matching |pem_encoded| or -1 if none