Remove catapult_base from telemetry.

tools/telemetry/catapult_base/refactor/annotated_symbol/reference.py

-# Copyright 2015 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 itertools
-import symbol
-import token
-
-from catapult_base.refactor.annotated_symbol import base_symbol
-from catapult_base.refactor import snippet
-
-
-__all__ = [
-    'Reference',
-]
-
-
-class Reference(base_symbol.AnnotatedSymbol):
-  @classmethod
-  def Annotate(cls, nodes):
-    if not nodes:
-      return None
-    if nodes[0].type != symbol.atom:
-      return None
-    if not nodes[0].children or nodes[0].children[0].type != token.NAME:
-      return None
-
-    for i in xrange(1, len(nodes)):
-      if not nodes:
-        break
-      if nodes[i].type != symbol.trailer:
-        break
-      if len(nodes[i].children) != 2:
-        break
-      if (nodes[i].children[0].type != token.DOT or
-          nodes[i].children[1].type != token.NAME):
-        break
-    else:
-      i = len(nodes)
-
-    return [cls(nodes[:i])] + nodes[i:]
-
-  def __init__(self, children):
-    super(Reference, self).__init__(-1, children)
-
-  @property
-  def type_name(self):
-    return 'attribute_reference'
-
-  @property
-  def value(self):
-    return ''.join(token_snippet.value
-                   for child in self.children
-                   for token_snippet in child.children)
-
-  @value.setter
-  def value(self, value):
-    value_parts = value.split('.')
-
-    # If we have too many children, cut the list down to size.
-    self._children = self._children[:len(value_parts)]
-
-    # Update child nodes.
-    for child, value_part in itertools.izip_longest(
-        self._children, value_parts):
-      if child:
-        # Modify existing children. This helps preserve comments and spaces.
-        child.children[-1].value = value_part
-      else:
-        # Add children as needed.
-        token_snippets = [
-            snippet.TokenSnippet.Create(token.DOT, '.'),
-            snippet.TokenSnippet.Create(token.NAME, value_part),
-        ]
-        self._children.append(snippet.Symbol(symbol.trailer, token_snippets))