Persist the server config that is received via kSCUP.

net/http/disk_cache_based_quic_server_info.cc

Index: net/http/disk_cache_based_quic_server_info.cc
diff --git a/net/http/disk_cache_based_quic_server_info.cc b/net/http/disk_cache_based_quic_server_info.cc
index 51fba2164b7862c576101902fb5be4304cc29926..13c53b7f2679bad8478ae2ccf4aebe0f38740244 100644
--- a/net/http/disk_cache_based_quic_server_info.cc
+++ b/net/http/disk_cache_based_quic_server_info.cc
@@ -213,7 +213,9 @@ int DiskCacheBasedQuicServerInfo::DoReadComplete(int rv) {
 }
 
 int DiskCacheBasedQuicServerInfo::DoWriteComplete(int rv) {
-  state_ = SET_DONE;
+  // Keep the entry open for future writes.
+  new_data_.clear();
+  state_ = NONE;
   return OK;
 }
 
@@ -221,7 +223,8 @@ int DiskCacheBasedQuicServerInfo::DoCreateOrOpenComplete(int rv) {
   if (rv != OK) {
     state_ = SET_DONE;
   } else {
-    entry_ = data_shim_->entry;
+    if (!entry_)
+      entry_ = data_shim_->entry;

[rjshade, 2014/09/18 19:42:51]

Chromium style guide doesn't require {} around single line bodies?

[Ryan Hamilton, 2014/09/18 19:52:52]

Nope; Chrome's unofficial net/ style guide prohibits them :>

     state_ = WRITE;
   }
   return OK;
@@ -264,8 +267,10 @@ int DiskCacheBasedQuicServerInfo::DoWrite() {
 }
 
 int DiskCacheBasedQuicServerInfo::DoCreateOrOpen() {
-  DCHECK(entry_ == NULL);
   state_ = CREATE_OR_OPEN_COMPLETE;
+  if (entry_)
+    return OK;
+
   if (found_entry_) {
     return backend_->OpenEntry(key(), &data_shim_->entry, io_callback_);
   }