Reverting again ... More crashes, and the instrumentation did not appear to help

net/socket/ssl_client_socket_pool.h

Index: net/socket/ssl_client_socket_pool.h
===================================================================
--- net/socket/ssl_client_socket_pool.h	(revision 131144)
+++ net/socket/ssl_client_socket_pool.h	(working copy)
@@ -166,7 +166,6 @@
 
 class NET_EXPORT_PRIVATE SSLClientSocketPool
     : public ClientSocketPool,
-      public LayeredPool,
       public SSLConfigService::Observer {
  public:
   // Only the pools that will be used are required. i.e. if you never
@@ -212,8 +211,6 @@
 
   virtual void Flush() OVERRIDE;
 
-  virtual bool IsStalled() const OVERRIDE;
-
   virtual void CloseIdleSockets() OVERRIDE;
 
   virtual int IdleSocketCount() const OVERRIDE;
@@ -225,10 +222,6 @@
       const std::string& group_name,
       const ClientSocketHandle* handle) const OVERRIDE;
 
-  virtual void AddLayeredPool(LayeredPool* layered_pool) OVERRIDE;
-
-  virtual void RemoveLayeredPool(LayeredPool* layered_pool) OVERRIDE;
-
   virtual base::DictionaryValue* GetInfoAsValue(
       const std::string& name,
       const std::string& type,
@@ -238,9 +231,6 @@
 
   virtual ClientSocketPoolHistograms* histograms() const OVERRIDE;
 
-  // LayeredPool implementation.
-  virtual bool CloseOneIdleConnection() OVERRIDE;
-
  private:
   typedef ClientSocketPoolBase<SSLSocketParams> PoolBase;