[Telemetry] Reorganize everything.

tools/telemetry/telemetry/core/chrome/desktop_browser_backend.py

 # Copyright (c) 2012 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 os as os
 import subprocess as subprocess
 import shutil
 import tempfile
 
-from telemetry import browser_backend
-from telemetry import util
+from telemetry.core import util
+from telemetry.core.chrome import browser_backend
 
 class DesktopBrowserBackend(browser_backend.BrowserBackend):
   """The backend for controlling a locally-executed browser instance, on Linux,
   Mac or Windows.
   """
   def __init__(self, options, executable, is_content_shell):
     super(DesktopBrowserBackend, self).__init__(
         is_content_shell=is_content_shell,
         supports_extensions=not is_content_shell, options=options)
 
@@ skipping 96 matching lines @@
   def __init__(self, *port_pairs):
     self._host_port = port_pairs[0].local_port
 
   @property
   def url(self):
     assert self._host_port
     return 'http://localhost:%i' % self._host_port
 
   def Close(self):
     self._host_port = None