Better timing for onResourceRequested and onResourceReceived.

We record the time right inside the network access manager. This gives
better accuracy than doing it from JavaScript side, no loss due to the
latency of signal slot connection.

python/pyphantomjs/networkaccessmanager.py

@@ -18,7 +18,7 @@
 '''
 
 from PyQt4.QtGui import QDesktopServices
-from PyQt4.QtCore import pyqtSignal
+from PyQt4.QtCore import pyqtSignal, QDateTime
 from PyQt4.QtNetwork import QNetworkAccessManager, QNetworkDiskCache, \
                             QNetworkRequest
 
@@ -69,7 +69,8 @@ class NetworkAccessManager(QNetworkAccessManager):
             'id': self.m_idCounter,
             'url': req.url().toString(),
             'method': toString(op),
-            'headers': headers
+            'headers': headers,
+            'time': QDateTime.currentDateTime()
         }
 
         reply.readyRead.connect(self.handleStarted)
@@ -96,7 +97,8 @@ class NetworkAccessManager(QNetworkAccessManager):
             'statusText': reply.attribute(QNetworkRequest.HttpReasonPhraseAttribute),
             'contentType': reply.header(QNetworkRequest.ContentTypeHeader),
             'redirectURL': reply.header(QNetworkRequest.LocationHeader),
-            'headers': headers
+            'headers': headers,
+            'time': QDateTime.currentDateTime()
         }
 
         del self.m_ids[reply]
@@ -133,7 +135,8 @@ class NetworkAccessManager(QNetworkAccessManager):
             'contentType': reply.header(QNetworkRequest.ContentTypeHeader),
             'bodySize': reply.size(),
             'redirectURL': reply.header(QNetworkRequest.LocationHeader),
-            'headers': headers
+            'headers': headers,
+            'time': QDateTime.currentDateTime()
         }
 
         do_action('NetworkAccessManagerHandleStarted', Bunch(locals()))