Delete tools/telemetry.

tools/telemetry/telemetry/internal/backends/chrome/extension_backend.py

Index: tools/telemetry/telemetry/internal/backends/chrome/extension_backend.py
diff --git a/tools/telemetry/telemetry/internal/backends/chrome/extension_backend.py b/tools/telemetry/telemetry/internal/backends/chrome/extension_backend.py
deleted file mode 100644
index b6abd97e92f959620627d2ed912bb244b660786c..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/internal/backends/chrome/extension_backend.py
+++ /dev/null
@@ -1,48 +0,0 @@
-# Copyright 2014 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 collections
-
-from telemetry.internal.backends.chrome_inspector import inspector_backend_list
-from telemetry.internal.browser import extension_page
-
-
-class ExtensionBackendList(inspector_backend_list.InspectorBackendList):
-  """A dynamic sequence of extension_page.ExtensionPages."""
-
-  def __init__(self, browser_backend):
-    super(ExtensionBackendList, self).__init__(browser_backend)
-
-  def ShouldIncludeContext(self, context):
-    return context['url'].startswith('chrome-extension://')
-
-  def CreateWrapper(self, inspector_backend):
-    return extension_page.ExtensionPage(inspector_backend)
-
-class ExtensionBackendDict(collections.Mapping):
-  """A dynamic mapping of extension_id to extension_page.ExtensionPages."""
-
-  def __init__(self, browser_backend):
-    self._extension_backend_list = ExtensionBackendList(browser_backend)
-
-  def __getitem__(self, extension_id):
-    extensions = []
-    for context_id in self._extension_backend_list.IterContextIds():
-      if self.ContextIdToExtensionId(context_id) == extension_id:
-        extensions.append(
-            self._extension_backend_list.GetBackendFromContextId(context_id))
-    if not extensions:
-      raise KeyError('Cannot find an extension with id=%s' % extension_id)
-    return extensions
-
-  def __iter__(self):
-    for context_id in self._extension_backend_list.IterContextIds():
-      yield self._extension_backend_list.GetBackendFromContextId(context_id)
-
-  def __len__(self):
-    return len(self._extension_backend_list)
-
-  def ContextIdToExtensionId(self, context_id):
-    context = self._extension_backend_list.GetContextInfo(context_id)
-    return extension_page.UrlToExtensionId(context['url'])