Update run_apach2.py to serve HTTP tests at server root
Update run_apach2.py to serve HTTP tests at server root

The complete set of layout tests is still available at /LayoutTests
and scripts at /WebKitTools/DumpRenderTree/android.

Note that this requires a corresponding change to
external/webkit/WebKitTools/DumpRenderTree/android/get_layout_tests_dir_contents.php

Bug: 2951727
Change-Id: Idf366942ffd5786759c989e992359b7e7dbb182c

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base