Delete tools/telemetry.

tools/telemetry/telemetry/value/histogram_util.py

Index: tools/telemetry/telemetry/value/histogram_util.py
diff --git a/tools/telemetry/telemetry/value/histogram_util.py b/tools/telemetry/telemetry/value/histogram_util.py
deleted file mode 100644
index 2a675865ae2d350ddb9272eb8e399bd40e7d2f59..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/value/histogram_util.py
+++ /dev/null
@@ -1,140 +0,0 @@
-# Copyright 2013 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.
-
-"""This is a helper module to get and manipulate histogram data.
-
-The histogram data is the same data as is visible from "chrome://histograms".
-More information can be found at: chromium/src/base/metrics/histogram.h
-"""
-
-import collections
-import json
-import logging
-
-from telemetry.core import exceptions
-
-BROWSER_HISTOGRAM = 'browser_histogram'
-RENDERER_HISTOGRAM = 'renderer_histogram'
-
-
-def GetHistogramBucketsFromJson(histogram_json):
-  return GetHistogramBucketsFromRawValue(json.loads(histogram_json))
-
-
-def GetHistogramBucketsFromRawValue(raw_value):
-  buckets = raw_value.get('buckets', [])
-  if buckets:
-    # If there are values greater than the maximum allowable for the histogram,
-    # the highest bucket will have a 'low': maxvalue entry in the dict but no
-    # 'high' entry. Code often assumes the 'high' value will always be present,
-    # and uses it to get bucket mean. So default it to the same value as low.
-    buckets[-1].setdefault('high', buckets[-1]['low'])
-  return buckets
-
-
-def CustomizeBrowserOptions(options):
-  """Allows histogram collection."""
-  options.AppendExtraBrowserArgs(['--enable-stats-collection-bindings'])
-
-
-def SubtractHistogram(histogram_json, start_histogram_json):
-  """Subtracts a previous histogram from a histogram.
-
-  Both parameters and the returned result are json serializations.
-  """
-  start_histogram = json.loads(start_histogram_json)
-  start_histogram_buckets = GetHistogramBucketsFromRawValue(start_histogram)
-  # It's ok if the start histogram is empty (we had no data, maybe even no
-  # histogram at all, at the start of the test).
-  if not start_histogram_buckets:
-    return histogram_json
-
-  histogram = json.loads(histogram_json)
-  if ('pid' in start_histogram and 'pid' in histogram
-      and start_histogram['pid'] != histogram['pid']):
-    raise Exception(
-        'Trying to compare histograms from different processes (%d and %d)'
-        % (start_histogram['pid'], histogram['pid']))
-
-  start_histogram_bucket_counts = dict()
-  for b in start_histogram_buckets:
-    start_histogram_bucket_counts[b['low']] = b['count']
-
-  new_buckets = []
-  for b in GetHistogramBucketsFromRawValue(histogram):
-    new_bucket = b
-    low = b['low']
-    if low in start_histogram_bucket_counts:
-      new_bucket['count'] = b['count'] - start_histogram_bucket_counts[low]
-      if new_bucket['count'] < 0:
-        logging.error('Histogram subtraction error, starting histogram most '
-                      'probably invalid.')
-    if new_bucket['count']:
-      new_buckets.append(new_bucket)
-  histogram['buckets'] = new_buckets
-  histogram['count'] -= start_histogram['count']
-
-  return json.dumps(histogram)
-
-
-def AddHistograms(histogram_jsons):
-  """Adds histograms together. Used for aggregating data.
-
-  The parameter is a list of json serializations and the returned result is a
-  json serialization too.
-
-  Note that the histograms to be added together are typically from different
-  processes.
-  """
-
-  buckets = collections.defaultdict(int)
-  for histogram_json in histogram_jsons:
-    for b in GetHistogramBucketsFromJson(histogram_json):
-      key = (b['low'], b['high'])
-      buckets[key] += b['count']
-
-  buckets = [{'low': key[0], 'high': key[1], 'count': value}
-      for key, value in buckets.iteritems()]
-  buckets.sort(key=lambda h: h['low'])
-
-  result_histogram = {}
-  result_histogram['buckets'] = buckets
-  return json.dumps(result_histogram)
-
-
-def GetHistogram(histogram_type, histogram_name, tab):
-  """Get a json serialization of a histogram."""
-  assert histogram_type in [BROWSER_HISTOGRAM, RENDERER_HISTOGRAM]
-  function = 'getHistogram'
-  if histogram_type == BROWSER_HISTOGRAM:
-    function = 'getBrowserHistogram'
-  try:
-    histogram_json = tab.EvaluateJavaScript(
-        'statsCollectionController.%s("%s")' %
-        (function, histogram_name))
-  except exceptions.EvaluateException:
-    # Sometimes JavaScript flakily fails to execute: http://crbug.com/508431
-    histogram_json = None
-  if histogram_json:
-    return histogram_json
-  return None
-
-
-def GetHistogramCount(histogram_type, histogram_name, tab):
-  """Get the count of events for the given histograms."""
-  histogram_json = GetHistogram(histogram_type, histogram_name, tab)
-  histogram = json.loads(histogram_json)
-  if 'count' in histogram:
-    return histogram['count']
-  else:
-    return 0
-
-def GetHistogramSum(histogram_type, histogram_name, tab):
-  """Get the sum of events for the given histograms."""
-  histogram_json = GetHistogram(histogram_type, histogram_name, tab)
-  histogram = json.loads(histogram_json)
-  if 'sum' in histogram:
-    return histogram['sum']
-  else:
-    return 0