Move telemetry/core/timeline and timeline_data to telemetry/timeline.

tools/perf/metrics/network.py

 # Copyright 2014 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.
 
 import base64
 import gzip
 import hashlib
 import io
 import logging
 import zlib
 
 from metrics import Metric
 from telemetry.page import page_measurement
 # All network metrics are Chrome only for now.
 from telemetry.core.backends.chrome import inspector_network
-from telemetry.core.timeline import recording_options
+from telemetry.timeline import recording_options
 
 
 class NetworkMetricException(page_measurement.MeasurementFailure):
   pass
 
 
 class HTTPResponse(object):
   """ Represents an HTTP response from a timeline event."""
   def __init__(self, event):
     self._response = (
@@ skipping 155 matching lines @@
     results.Add('content_length', 'bytes', content_length)
     results.Add('original_content_length', 'bytes', original_content_length)
     if self.compute_data_saving:
       if (original_content_length > 0 and
           original_content_length >= content_length):
         saving = (float(original_content_length-content_length) * 100 /
                   original_content_length)
         results.Add('data_saving', 'percent', saving)
       else:
         results.Add('data_saving', 'percent', 0.0)