Move TransportSecurityPersister completely to IO thread.

chrome/browser/profiles/profile_impl.cc

Index: chrome/browser/profiles/profile_impl.cc
diff --git a/chrome/browser/profiles/profile_impl.cc b/chrome/browser/profiles/profile_impl.cc
index 17f978c7fa66c5ae8f0e4a29750d27d9892ef39a..be6ce5b3fec725cdf4f2385bf64aee3a83625f01 100644
--- a/chrome/browser/profiles/profile_impl.cc
+++ b/chrome/browser/profiles/profile_impl.cc
@@ -950,22 +950,6 @@ SSLHostState* ProfileImpl::GetSSLHostState() {
   return ssl_host_state_.get();
 }
 
-net::TransportSecurityState*
-    ProfileImpl::GetTransportSecurityState() {
-  if (!transport_security_state_.get()) {
-    transport_security_state_ = new net::TransportSecurityState(
-        CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
-            switches::kHstsHosts));
-    transport_security_persister_ =
-        new TransportSecurityPersister(transport_security_state_.get(),
-                                       path_,
-                                       false /* read-write */);
-    transport_security_persister_->Init();
-  }
-
-  return transport_security_state_.get();
-}
-
 void ProfileImpl::OnPrefsLoaded(bool success) {
   if (!success) {
     DCHECK(delegate_);
@@ -1828,6 +1812,10 @@ chrome_browser_net::Predictor* ProfileImpl::GetNetworkPredictor() {
   return predictor_;
 }
 
+void ProfileImpl::DeleteTransportSecurityStateSince(const base::Time& time) {
+  io_data_.DeleteTransportSecurityStateSince(time);
+}
+
 SpellCheckProfile* ProfileImpl::GetSpellCheckProfile() {
   if (!spellcheck_profile_.get())
     spellcheck_profile_.reset(new SpellCheckProfile());