Instrument SourceStream using MemoryDumpProvider

net/url_request/url_request_job.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_URL_REQUEST_URL_REQUEST_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_JOB_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/power_monitor/power_observer.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/load_states.h"
 #include "net/base/net_error_details.h"
 #include "net/base/net_export.h"
 #include "net/base/request_priority.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/filter/source_stream.h"
 #include "net/socket/connection_attempts.h"
 #include "net/url_request/redirect_info.h"
 #include "net/url_request/url_request.h"
 #include "url/gurl.h"
 
+namespace base {
+namespace trace_event {
+class ProcessMemoryDump;
+}
+}
+
 namespace net {
 
 class AuthChallengeInfo;
 class AuthCredentials;
 class CookieOptions;
 class HttpRequestHeaders;
 class HttpResponseInfo;
 class IOBuffer;
 struct LoadTimingInfo;
 class NetworkDelegate;
@@ skipping 182 matching lines @@
   // will be destroyed. This is used to track that no pending callbacks
   // exist at destruction time of the URLRequestJob, unless they have been
   // canceled by an explicit NetworkDelegate::NotifyURLRequestDestroyed() call.
   virtual void NotifyURLRequestDestroyed();
 
   // Populates |out| with the connection attempts made at the socket layer in
   // the course of executing the URLRequestJob. Should be called after the job
   // has failed or the response headers have been received.
   virtual void GetConnectionAttempts(ConnectionAttempts* out) const;
 
+  // Dumps memory allocation stats. |parent_dump_absolute_name| is the name
+  // used by the parent MemoryAllocatorDump in the memory dump hierarchy.
+  virtual void DumpMemoryStats(
+      base::trace_event::ProcessMemoryDump* pmd,
+      const std::string& parent_dump_absolute_name) const;
+
   // Given |policy|, |referrer|, and |redirect_destination|, returns the
   // referrer URL mandated by |request|'s referrer policy.
   static GURL ComputeReferrerForRedirect(URLRequest::ReferrerPolicy policy,
                                          const GURL& original_referrer,
                                          const GURL& redirect_destination);
 
  protected:
   // Notifies the job that a certificate is requested.
   void NotifyCertificateRequested(SSLCertRequestInfo* cert_request_info);
 
@@ skipping 197 matching lines @@
   CompletionCallback read_raw_callback_;
 
   base::WeakPtrFactory<URLRequestJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_JOB_H_