Revert of Remove catapult_base from telemetry.

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

Index: tools/telemetry/catapult_base/refactor/annotated_symbol/class_definition.py
diff --git a/tools/telemetry/catapult_base/refactor/annotated_symbol/class_definition.py b/tools/telemetry/catapult_base/refactor/annotated_symbol/class_definition.py
new file mode 100644
index 0000000000000000000000000000000000000000..8254aad9368de0d8f8db8fbd86c61c5fbdb5673c
--- /dev/null
+++ b/tools/telemetry/catapult_base/refactor/annotated_symbol/class_definition.py
@@ -0,0 +1,48 @@
+# 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 symbol
+
+from catapult_base.refactor.annotated_symbol import base_symbol
+
+
+__all__ = [
+    'Class',
+]
+
+
+class Class(base_symbol.AnnotatedSymbol):
+  @classmethod
+  def Annotate(cls, symbol_type, children):
+    if symbol_type != symbol.stmt:
+      return None
+
+    compound_statement = children[0]
+    if compound_statement.type != symbol.compound_stmt:
+      return None
+
+    statement = compound_statement.children[0]
+    if statement.type == symbol.classdef:
+      return cls(statement.type, statement.children)
+    elif (statement.type == symbol.decorated and
+        statement.children[-1].type == symbol.classdef):
+      return cls(statement.type, statement.children)
+    else:
+      return None
+
+  @property
+  def suite(self):
+    raise NotImplementedError()
+
+  def FindChild(self, snippet_type, **kwargs):
+    return self.suite.FindChild(snippet_type, **kwargs)
+
+  def FindChildren(self, snippet_type):
+    return self.suite.FindChildren(snippet_type)
+
+  def Cut(self, child):
+    self.suite.Cut(child)
+
+  def Paste(self, child):
+    self.suite.Paste(child)