tools/android/loading Move LoadingTraceDatabase under cloud/

tools/android/loading/cloud/backend/report_task_handler.py

 # Copyright 2016 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 json
 import uuid
 
 from googleapiclient import errors
 
+from common.loading_trace_database import LoadingTraceDatabase
 import common.google_error_helper as google_error_helper
 from failure_database import FailureDatabase
 from loading_trace import LoadingTrace
-from loading_trace_database import LoadingTraceDatabase
 from report import LoadingReport
 
 
 def LoadRemoteTrace(storage_accessor, remote_trace_path, logger):
   """Loads and returns the LoadingTrace located at the remote trace path.
 
   Args:
     storage_accessor: (GoogleStorageAccessor) Used to download the trace from
                                               CloudStorage.
     remote_trace_path: (str) Path to the trace file.
@@ skipping 107 matching lines @@
         self._failure_database.AddFailure('report_generation_failed', path)
         continue
       rows.append(report)
 
     if rows:
       tag = clovis_task.BackendParams()['tag']
       # BigQuery table names can contain only alpha numeric characters and
       # underscores.
       table_id = ''.join(c for c in tag if c.isalnum() or c == '_')
       self._StreamRowsToBigQuery(rows, table_id)