Instrument SpdySessionPool using MemoryDumpProvider

net/spdy/spdy_session_pool.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SPDY_SPDY_SESSION_POOL_H_
 #define NET_SPDY_SPDY_SESSION_POOL_H_
 
 #include <stddef.h>
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_export.h"
 #include "net/base/network_change_notifier.h"
 #include "net/cert/cert_database.h"
 #include "net/proxy/proxy_config.h"
 #include "net/proxy/proxy_server.h"
 #include "net/spdy/spdy_session_key.h"
 #include "net/ssl/ssl_config_service.h"
 
+namespace base {
+namespace trace_event {
+class ProcessMemoryDump;
+}
+}
+
 namespace net {
 
 class ClientSocketHandle;
 class HostResolver;
 class HttpServerProperties;
 class NetLogWithSource;
 class ProxyDelegate;
 class SpdySession;
 class TransportSecurityState;
 
@@ skipping 97 matching lines @@
 
   // We perform the same flushing as described above when SSL settings change.
   void OnSSLConfigChanged() override;
 
   // CertDatabase::Observer methods:
 
   // We perform the same flushing as described above when certificate database
   // is changed.
   void OnCertDBChanged(const X509Certificate* cert) override;
 
+  void DumpMemoryStats(base::trace_event::ProcessMemoryDump* pmd,
+                       const std::string& parent_dump_absolute_name) const;
+
  private:
   friend class SpdySessionPoolPeer;  // For testing.
 
   typedef std::set<SpdySession*> SessionSet;
   typedef std::vector<base::WeakPtr<SpdySession> > WeakSessionList;
   typedef std::map<SpdySessionKey, base::WeakPtr<SpdySession> >
       AvailableSessionMap;
   typedef std::map<IPEndPoint, SpdySessionKey> AliasMap;
   typedef std::map<GURL, WeakSessionList> UnclaimedPushedStreamMap;
 
@@ skipping 66 matching lines @@
   // resources from origins that are different from those of their associated
   // streams. May be nullptr.
   ProxyDelegate* proxy_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(SpdySessionPool);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_SESSION_POOL_H_