Switch run_http_server.bat to using python from depot_tools instead of what c...

webkit/tools/layout_tests/run_http_server.sh

Index: webkit/tools/layout_tests/run_http_server.sh
===================================================================
--- webkit/tools/layout_tests/run_http_server.sh	(revision 46137)
+++ webkit/tools/layout_tests/run_http_server.sh	(working copy)
@@ -7,16 +7,12 @@
 exec_dir=$(dirname $0)
 
 if [ "$OSTYPE" = "cygwin" ]; then
-  system_root=`cygpath "$SYSTEMROOT"`
-  PATH="/usr/bin:$system_root/system32:$system_root:$system_root/system32/WBEM"
-  export PATH
-  unset PYTHONPATH
-  PYTHON_PROG="$exec_dir/../../../third_party/python_24/python.exe"
   SCRIPT=$(cygpath -wa "$exec_dir/run_http_server.py")
 else
-  PYTHON_PROG=python
-  unset PYTHONPATH
   SCRIPT="$exec_dir/run_http_server.py"
 fi
 
+PYTHON_PROG=python
+unset PYTHONPATH
+
 "$PYTHON_PROG" "$SCRIPT" "$@"