[telemetry] Refactoring of telemetry for the webdriver backend to land in.

tools/telemetry/telemetry/core/platform/__init__.py

Index: tools/telemetry/telemetry/core/platform/__init__.py
diff --git a/tools/telemetry/telemetry/core/platform/__init__.py b/tools/telemetry/telemetry/core/platform/__init__.py
index 5b88286cfa81acd5a52e23f59b31964540f4b090..372915956c50fb2fb32e7ee08c97c55b0a03d805 100644
--- a/tools/telemetry/telemetry/core/platform/__init__.py
+++ b/tools/telemetry/telemetry/core/platform/__init__.py
@@ -2,6 +2,12 @@
 # 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
+
 class Platform(object):
   """The platform that the target browser is running on.
 
@@ -104,3 +110,14 @@ class Platform(object):
     This function does not require root or administrator access."""
     return self._platform_backend.FlushSystemCacheForDirectory(
         directory, ignoring=ignoring)
+
+
+def CreatePlatformBackendForCurrentOS():
+  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()