Make CertificateProviderService vend ClientCertIdentities directly.

chrome/browser/chromeos/certificate_provider/certificate_requests.cc

Index: chrome/browser/chromeos/certificate_provider/certificate_requests.cc
diff --git a/chrome/browser/chromeos/certificate_provider/certificate_requests.cc b/chrome/browser/chromeos/certificate_provider/certificate_requests.cc
index ecd2f4633babb105f76b73119f612c484d8c9014..3dc48f0bbbfa12608bf23c2a1a73cc844c9b0379 100644
--- a/chrome/browser/chromeos/certificate_provider/certificate_requests.cc
+++ b/chrome/browser/chromeos/certificate_provider/certificate_requests.cc
@@ -39,7 +39,7 @@ struct CertificateRequests::CertificateRequestState {
   std::map<std::string, CertificateInfoList> extension_to_certificates;
 
   // The callback that must be run with the final list of certificates.
-  base::Callback<void(const net::CertificateList&)> callback;
+  base::Callback<void(net::ClientCertIdentityList)> callback;
 };
 
 CertificateRequests::CertificateRequests() {}
@@ -48,7 +48,7 @@ CertificateRequests::~CertificateRequests() {}
 
 int CertificateRequests::AddRequest(
     const std::vector<std::string>& extension_ids,
-    const base::Callback<void(const net::CertificateList&)>& callback,
+    const base::Callback<void(net::ClientCertIdentityList)>& callback,
     const base::Callback<void(int)>& timeout_callback) {
   std::unique_ptr<CertificateRequestState> state(new CertificateRequestState);
   state->callback = callback;
@@ -87,7 +87,7 @@ bool CertificateRequests::SetCertificates(
 bool CertificateRequests::RemoveRequest(
     int request_id,
     std::map<std::string, CertificateInfoList>* certificates,
-    base::Callback<void(const net::CertificateList&)>* callback) {
+    base::Callback<void(net::ClientCertIdentityList)>* callback) {
   const auto it = requests_.find(request_id);
   if (it == requests_.end())
     return false;