Re-apply r52831: "DevTools: provide SSL networks time as a part of LoadTimingInfo."

chrome/browser/net/load_timing_observer.cc

Index: chrome/browser/net/load_timing_observer.cc
diff --git a/chrome/browser/net/load_timing_observer.cc b/chrome/browser/net/load_timing_observer.cc
index cd80b7de9031cf5a7c5da87897e61069b53c90ff..d0e0485f68bd9f2469a3f55c12f6d4b10baef842 100644
--- a/chrome/browser/net/load_timing_observer.cc
+++ b/chrome/browser/net/load_timing_observer.cc
@@ -71,6 +71,8 @@ void LoadTimingObserver::OnAddEntry(net::NetLog::EventType type,
     OnAddURLRequestEntry(type, time, source, phase, params);
   else if (source.type == net::NetLog::SOURCE_CONNECT_JOB)
     OnAddConnectJobEntry(type, time, source, phase, params);
+  else if (source.type == net::NetLog::SOURCE_SOCKET)
+    OnAddSocketEntry(type, time, source, phase, params);
 }
 
 void LoadTimingObserver::OnAddURLRequestEntry(
@@ -148,6 +150,14 @@ void LoadTimingObserver::OnAddURLRequestEntry(
     case net::NetLog::TYPE_SOCKET_POOL_BOUND_TO_SOCKET:
       record->socket_log_id = static_cast<net::NetLogSourceParameter*>(
           params)->value().id;
+      if (!record->socket_reused) {
+        SocketToRecordMap::iterator it =
+            socket_to_record_.find(record->socket_log_id);
+        if (it != socket_to_record_.end() && !it->second.ssl_start.is_null()) {
+            timing.ssl_start = TimeTicksToOffset(it->second.ssl_start, record);
+            timing.ssl_end = TimeTicksToOffset(it->second.ssl_end, record);
+        }
+      }
       break;
     case net::NetLog::TYPE_HTTP_TRANSACTION_SEND_REQUEST:
     case net::NetLog::TYPE_SPDY_TRANSACTION_SEND_REQUEST:
@@ -204,3 +214,42 @@ void LoadTimingObserver::OnAddConnectJobEntry(
     }
   }
 }
+
+void LoadTimingObserver::OnAddSocketEntry(
+    net::NetLog::EventType type,
+    const base::TimeTicks& time,
+    const net::NetLog::Source& source,
+    net::NetLog::EventPhase phase,
+    net::NetLog::EventParameters* params) {
+  bool is_begin = phase == net::NetLog::PHASE_BEGIN;
+  bool is_end = phase == net::NetLog::PHASE_END;
+
+  // Manage record lifetime based on the SOCKET_ALIVE entry.
+  if (type == net::NetLog::TYPE_SOCKET_ALIVE) {
+    if (is_begin) {
+      // Prevents us from passively growing the memory memory unbounded in case
+      // something went wrong. Should not happen.
+      if (socket_to_record_.size() > kMaxNumEntries) {
+        LOG(WARNING) << "The load timing observer socket count has grown "
+                        "larger than expected, resetting";
+        socket_to_record_.clear();
+      }
+
+      socket_to_record_.insert(
+          std::make_pair(source.id, SocketRecord()));
+    } else if (is_end) {
+      socket_to_record_.erase(source.id);
+    }
+    return;
+  }
+  SocketToRecordMap::iterator it = socket_to_record_.find(source.id);
+  if (it == socket_to_record_.end())
+    return;
+
+  if (type == net::NetLog::TYPE_SSL_CONNECT) {
+    if (is_begin)
+      it->second.ssl_start = time;
+    else if (is_end)
+      it->second.ssl_end = time;
+  }
+}