[Net] Propagate priority changes from URLRequest to HttpTransaction

net/http/http_cache_transaction.cc

Index: net/http/http_cache_transaction.cc
diff --git a/net/http/http_cache_transaction.cc b/net/http/http_cache_transaction.cc
index 1bf72cb66acff73d8cf24cb5707c76051da2381e..f92a64a1a650b24abbb73d7b970e4e7e022be6a3 100644
--- a/net/http/http_cache_transaction.cc
+++ b/net/http/http_cache_transaction.cc
@@ -465,6 +465,11 @@ bool HttpCache::Transaction::GetLoadTimingInfo(
   return false;
 }
 
+void HttpCache::Transaction::SetPriority(RequestPriority priority) {
+  if (network_trans_)
+    network_trans_->SetPriority(priority);

[akalin, 2013/03/13 18:53:04]

One question: can HttpCache::Transaction have multiple network_trans_ instances
in its lifetime? i.e., do I have to stash the priority somewhere and make sure
newly-created network_trans_ instances pick it up?

[mmenke, 2013/03/13 19:01:23]

RestartNetworkRequest() does this.  There may be other times when this is done
as well.

Since the priority is currently part of HttpRequestInfo, which we have a pointer
to, we don't need to stash it currently.

However, if we remove it from that data structure (Per the TODO), we will need
to stash it both here and in HttpNetworkTransaction.

+}
+
 //-----------------------------------------------------------------------------
 
 void HttpCache::Transaction::DoCallback(int rv) {