Deprecate instead of close SPDY sessions upon network change.

net/spdy/spdy_session_pool.cc

Index: net/spdy/spdy_session_pool.cc
diff --git a/net/spdy/spdy_session_pool.cc b/net/spdy/spdy_session_pool.cc
index 72beec465db4a1e2e110f2e34d98423375a10d0c..9fe32d4ef751b53482a3542a5b8d07eda70732ef 100644
--- a/net/spdy/spdy_session_pool.cc
+++ b/net/spdy/spdy_session_pool.cc
@@ -278,7 +278,15 @@ base::Value* SpdySessionPool::SpdySessionPoolInfoToValue() const {
 }
 
 void SpdySessionPool::OnIPAddressChanged() {
-  CloseCurrentSessions(ERR_NETWORK_CHANGED);
+  WeakSessionList current_sessions = GetCurrentSessions();
+  for (WeakSessionList::const_iterator it = current_sessions.begin();
+       it != current_sessions.end(); ++it) {
+    if (!*it)
+      continue;
+
+    (*it)->Deprecate(ERR_NETWORK_CHANGED);

[Johnny, 2014/01/23 16:14:31]

Possible to call SpdySessionPool::MakeSessionUnavailable() here instead?

+    DCHECK(!IsSessionAvailable(*it));
+  }
   http_server_properties_->ClearAllSpdySettings();
 }