Move timeline and importers to use telemetry.value.TraceValue

tools/telemetry/telemetry/timeline/inspector_importer.py

Index: tools/telemetry/telemetry/timeline/inspector_importer.py
diff --git a/tools/telemetry/telemetry/timeline/inspector_importer.py b/tools/telemetry/telemetry/timeline/inspector_importer.py
index d4d5dd6935c35dbcb8d0c387d752c38c124b062f..c046f50804ede978da6386a15003093a50c03607 100644
--- a/tools/telemetry/telemetry/timeline/inspector_importer.py
+++ b/tools/telemetry/telemetry/timeline/inspector_importer.py
@@ -4,34 +4,26 @@
 '''Imports event data obtained from the inspector's timeline.'''
 
 from telemetry.timeline import importer
-from telemetry.timeline import inspector_timeline_data
 import telemetry.timeline.thread as timeline_thread
 import telemetry.timeline.slice as tracing_slice
+import telemetry.value.trace as trace_value_module
 
 class InspectorTimelineImporter(importer.TimelineImporter):
-  def __init__(self, model, timeline_data):
-    super(InspectorTimelineImporter, self).__init__(model, timeline_data)
+  def __init__(self, model, trace_value):
+    super(InspectorTimelineImporter, self).__init__(
+        model,
+        trace_value,
+        import_order=1)
+    self._events = trace_value.GetEventsFor(
+        trace_value_module.INSPECTOR_TRACE_PART)
 
   @staticmethod
-  def CanImport(timeline_data):
-    ''' Checks if timeline_data is from the inspector timeline. We assume
-    that if the first event is a valid inspector event, we can import the
-    entire list.
-    '''
-    if not isinstance(timeline_data,
-                      inspector_timeline_data.InspectorTimelineData):
-      return False
-
-    event_data = timeline_data.EventData()
-
-    if isinstance(event_data, list) and len(event_data):
-      event_datum = event_data[0]
-      return 'startTime' in event_datum and 'type' in event_datum
-    return False
+  def GetSupportedPart():
+    return trace_value_module.INSPECTOR_TRACE_PART
 
   def ImportEvents(self):
     render_process = self._model.GetOrCreateProcess(0)
-    for raw_event in self._timeline_data.EventData():
+    for raw_event in self._events:
       thread = render_process.GetOrCreateThread(raw_event.get('thread', 0))
       InspectorTimelineImporter.AddRawEventToThreadRecursive(thread, raw_event)