Teach waterfall.sh to look up the test failures on Windows (Dr.Memory) too

tools/valgrind/waterfall.sh

 #!/bin/bash
 
 # Copyright (c) 2011 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.
 
 # This script can be used by waterfall sheriffs to fetch the status
 # of Valgrind bots on the memory waterfall and test if their local
 # suppressions match the reports on the waterfall.
 
@@ skipping 114 matching lines @@
   done
   # }}}
 }
 
 match_suppressions() {
   PYTHONPATH=$THISDIR/../python/google \
              python "$THISDIR/test_suppressions.py" $@ "$LOGS_DIR/report_"*
 }
 
 match_gtest_excludes() {
-  for PLATFORM in "Linux" "Chromium%20Mac" "Chromium%20OS"
+  for PLATFORM in "Linux" "Chromium%20Mac" "Chromium%20OS" "Windows"
   do
     echo
     echo "Test failures on ${PLATFORM}:" | sed "s/%20/ /"
     grep -h -o "^FAILED:.*" -R "$LOGS_DIR"/*${PLATFORM}* | \
          grep -v "FAILS\|FLAKY" | sort | uniq | \
          sed -e "s/^FAILED://" -e "s/^/  /"
     # Don't put any operators between "grep | sed" and "RESULT=$PIPESTATUS"
     RESULT=$PIPESTATUS
 
     if [ "$RESULT" == 1 ]
@@ skipping 67 matching lines @@
 elif [ "$CMD" = "match" ]; then
   match_suppressions $@
   match_gtest_excludes
 elif [ "$CMD" = "blame" ]; then
   echo The blame command died of bitrot. If you need it, please reimplement it.
   echo Reimplementation is blocked on http://crbug.com/82688
 else
   usage
   exit 1
 fi