Instrument SpdySessionPool using MemoryDumpProvider

net/spdy/spdy_session.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_H_
 #define NET_SPDY_SPDY_SESSION_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 28 matching lines @@
 #include "net/spdy/spdy_framer.h"
 #include "net/spdy/spdy_header_block.h"
 #include "net/spdy/spdy_protocol.h"
 #include "net/spdy/spdy_session_pool.h"
 #include "net/spdy/spdy_stream.h"
 #include "net/spdy/spdy_write_queue.h"
 #include "net/ssl/ssl_config_service.h"
 #include "url/gurl.h"
 #include "url/scheme_host_port.h"
 
+namespace base {
+namespace trace_event {
+class ProcessMemoryDump;
+}
+}
+
 namespace net {
 
 namespace test {
 class SpdyStreamTest;
 }
 
 // This is somewhat arbitrary and not really fixed, but it will always work
 // reasonably with ethernet. Chop the world into 2-packet chunks.  This is
 // somewhat arbitrary, but is reasonably small and ensures that we elicit
 // ACKs quickly from TCP (because TCP tries to only ACK every other packet).
@@ skipping 499 matching lines @@
   // https://http2.github.io/http2-spec/#TLSUsage mandates minimum security
   // standards for TLS.
   bool HasAcceptableTransportSecurity() const;
 
   // Must be used only by |pool_|.
   base::WeakPtr<SpdySession> GetWeakPtr();
 
   // HigherLayeredPool implementation:
   bool CloseOneIdleConnection() override;
 
+  // Dumps memory allocation stats. |parent_dump_absolute_name| is the name

[Bence, 2016/12/08 19:52:32]

Same here.

[xunjieli, 2016/12/08 19:55:17]

Done.

+  // used by the parent MemoryAllocatorDump in the memory dump hierarchy.
+  void DumpMemoryStats(base::trace_event::ProcessMemoryDump* pmd,
+                       const std::string& parent_absolute_name) const;
+
  private:
   friend class test::SpdyStreamTest;
   friend class base::RefCounted<SpdySession>;
   friend class HttpNetworkTransactionTest;
   friend class HttpProxyClientSocketPoolTest;
   friend class SpdyHttpStreamTest;
   friend class SpdyNetworkTransactionTest;
   friend class SpdyProxyClientSocketTest;
   friend class SpdySessionTest;
   friend class SpdyStreamRequest;
@@ skipping 618 matching lines @@
   // Used for posting asynchronous IO tasks.  We use this even though
   // SpdySession is refcounted because we don't need to keep the SpdySession
   // alive if the last reference is within a RunnableMethod.  Just revoke the
   // method.
   base::WeakPtrFactory<SpdySession> weak_factory_;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_SESSION_H_