Add a bound on the total number of active sockets in ClientSocketPool....

net/http/http_network_session.h

Index: net/http/http_network_session.h
===================================================================
--- net/http/http_network_session.h	(revision 14127)
+++ net/http/http_network_session.h	(working copy)
@@ -17,8 +17,14 @@
 // This class holds session objects used by HttpNetworkTransaction objects.
 class HttpNetworkSession : public base::RefCounted<HttpNetworkSession> {
  public:
+  // Allow up to 64 connections across all hosts.
+  enum {
+    MAX_SOCKETS = 64,
+  };
+
   explicit HttpNetworkSession(ProxyService* proxy_service)
-      : connection_pool_(new ClientSocketPool(max_sockets_per_group_)),
+      : connection_pool_(
+            new ClientSocketPool(max_sockets_per_group_, MAX_SOCKETS)),
         proxy_service_(proxy_service) {
     DCHECK(proxy_service);
   }