[telemetry] Add a webdriver backend with support for IE.

tools/telemetry/telemetry/core/platform/util.py

Index: tools/telemetry/telemetry/core/platform/util.py
diff --git a/tools/telemetry/telemetry/core/platform/util.py b/tools/telemetry/telemetry/core/platform/util.py
new file mode 100644
index 0000000000000000000000000000000000000000..9aa200712f41fce12f960df064ec730bf1c55a83
--- /dev/null
+++ b/tools/telemetry/telemetry/core/platform/util.py
@@ -0,0 +1,20 @@
+# Copyright (c) 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.
+
+import sys
+
+from telemetry.core.platform import linux_platform_backend
+from telemetry.core.platform import mac_platform_backend
+from telemetry.core.platform import win_platform_backend
+
+
+def CreatePlatformBackendForCurrentOS():

[tonyg, 2013/07/31 20:59:33]

Maybe this should go in platform/__init__.py instead of creating a util.py.

[chrisgao (Use stgao instead), 2013/08/01 00:36:44]

Done in https://codereview.chromium.org/21406004/.

+  if sys.platform.startswith('linux'):
+    return linux_platform_backend.LinuxPlatformBackend()
+  elif sys.platform == 'darwin':
+    return mac_platform_backend.MacPlatformBackend()
+  elif sys.platform == 'win32':
+    return win_platform_backend.WinPlatformBackend()
+  else:
+    raise NotImplementedError()