Server push cancellation: add NetLogs to track cache lookup transaction

net/spdy/spdy_session.cc

 // 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.
 
 #include "net/spdy/spdy_session.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 342 matching lines @@
  public:
   explicit SpdyServerPushHelper(base::WeakPtr<SpdySession> session,
                                 const GURL& url)
       : session_(session), request_url_(url) {}
 
   void Cancel() override {
     if (session_)
       session_->CancelPush(request_url_);
   }
 
-  const GURL& GetURL() override { return request_url_; }
+  const GURL& GetURL() const override { return request_url_; }
 
  private:
   base::WeakPtr<SpdySession> session_;
   const GURL request_url_;
 };
 
 }  // namespace
 
 SpdyProtocolErrorDetails MapFramerErrorToProtocolError(
     SpdyFramer::SpdyFramerError err) {
@@ skipping 2312 matching lines @@
 
   ActiveStreamMap::iterator active_it = active_streams_.find(stream_id);
   if (active_it == active_streams_.end()) {
     NOTREACHED();
     return;
   }
 
   // Notify the push_delegate that a push promise has been received.
   if (push_delegate_) {
     push_delegate_->OnPush(base::MakeUnique<SpdyServerPushHelper>(
-        weak_factory_.GetWeakPtr(), gurl));
+                               weak_factory_.GetWeakPtr(), gurl),
+                           net_log_);
   }
 
   active_it->second->OnPushPromiseHeadersReceived(std::move(headers));
   DCHECK(active_it->second->IsReservedRemote());
   num_pushed_streams_++;
   return;
 }
 
 void SpdySession::OnPushPromise(SpdyStreamId stream_id,
                                 SpdyStreamId promised_stream_id,
@@ skipping 412 matching lines @@
     if (!queue->empty()) {
       SpdyStreamId stream_id = queue->front();
       queue->pop_front();
       return stream_id;
     }
   }
   return 0;
 }
 
 }  // namespace net