Revert 182991

tools/telemetry/telemetry/core/chrome/inspector_timeline.py

Index: tools/telemetry/telemetry/core/chrome/inspector_timeline.py
===================================================================
--- tools/telemetry/telemetry/core/chrome/inspector_timeline.py	(revision 182999)
+++ tools/telemetry/telemetry/core/chrome/inspector_timeline.py	(working copy)
@@ -1,121 +0,0 @@
-# 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.
-from telemetry.core.chrome import timeline_event
-from telemetry.core.chrome import timeline_model
-
-class TabBackendException(Exception):
-  pass
-
-class InspectorTimeline(object):
-  """Implementation of dev tools timeline."""
-  class Recorder(object):
-    """Utility class to Start / Stop recording timeline."""
-    def __init__(self, tab):
-      self._tab = tab
-
-    def __enter__(self):
-      self._tab.StartTimelineRecording()
-
-    def __exit__(self, *args):
-      self._tab.StopTimelineRecording()
-
-  def __init__(self, inspector_backend):
-    self._inspector_backend = inspector_backend
-    self._is_recording = False
-    self._timeline_model = None
-
-  @property
-  def timeline_model(self):
-    return self._timeline_model
-
-  def Start(self):
-    if self._is_recording:
-      return
-    self._is_recording = True
-    self._timeline_model = timeline_model.TimelineModel()
-    self._inspector_backend.RegisterDomain('Timeline',
-       self._OnNotification, self._OnClose)
-    req = {'method': 'Timeline.start'}
-    self._SendSyncRequest(req)
-
-  def Stop(self):
-    if not self._is_recording:
-      raise TabBackendException('Stop() called but not started')
-    self._is_recording = False
-    self._timeline_model.DidFinishRecording()
-    req = {'method': 'Timeline.stop'}
-    self._SendSyncRequest(req)
-    self._inspector_backend.UnregisterDomain('Timeline')
-
-  def _SendSyncRequest(self, req, timeout=60):
-    res = self._inspector_backend.SyncRequest(req, timeout)
-    if 'error' in res:
-      raise TabBackendException(res['error']['message'])
-    return res['result']
-
-  def _OnNotification(self, msg):
-    if not self._is_recording:
-      return
-    if 'method' in msg and msg['method'] == 'Timeline.eventRecorded':
-      self._OnEventRecorded(msg)
-
-  def _OnEventRecorded(self, msg):
-    record = msg.get('params', {}).get('record')
-    if record:
-      newly_created_event = InspectorTimeline.RawEventToTimelineEvent(record)
-      if newly_created_event:
-        self._timeline_model.AddEvent(newly_created_event)
-
-  @staticmethod
-  def RawEventToTimelineEvent(raw_inspector_event):
-    """Converts raw_inspector_event to TimelineEvent."""
-    return InspectorTimeline._RawEventToTimelineEventRecursive(
-      None, raw_inspector_event)
-
-  @staticmethod
-  def _RawEventToTimelineEventRecursive(
-    parent_for_created_events, raw_inspector_event):
-    """
-    Creates a new TimelineEvent for the raw_inspector_event, if possible, adding
-    it to the provided parent_for_created_events.
-
-    It then recurses on any child events found inside, building a tree of
-    TimelineEvents.
-
-    Returns the root of the created tree, or None.
-    """
-    # Create a TimelineEvent for this raw_inspector_event if possible. Only
-    # events with start-time and end-time get imported.
-    if ('startTime' in raw_inspector_event and
-        'endTime' in raw_inspector_event):
-      args = {}
-      for x in raw_inspector_event:
-        if x in ('startTime', 'endTime', 'children'):
-          continue
-        args[x] = raw_inspector_event[x]
-      if len(args) == 0:
-        args = None
-      newly_created_event = timeline_event.TimelineEvent(
-        name=raw_inspector_event['type'],
-        start_time_ms=raw_inspector_event['startTime'],
-        duration_ms=(raw_inspector_event['endTime'] -
-                     raw_inspector_event['startTime']),
-        args=args)
-      if parent_for_created_events:
-        parent_for_created_events.children.append(newly_created_event)
-    else:
-      newly_created_event = None
-
-    # Process any children events, creating TimelineEvents for them as well.
-    if newly_created_event:
-      parent_for_children = newly_created_event
-    else:
-      parent_for_children = parent_for_created_events
-    for child in raw_inspector_event.get('children', []):
-      InspectorTimeline._RawEventToTimelineEventRecursive(
-        parent_for_children, child)
-    return newly_created_event
-
-  def _OnClose(self):
-    pass