The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/84a550704bcfeb4635048b7adb2f1cff9fe5f1d1

commit 84a550704bcfeb4635048b7adb2f1cff9fe5f1d1
Author: Sharu Jiang <katesonia@google.com>
Date: Mon Sep 25 18:13:53 2017

[Predator] Fix bug of ``chromium-`` project.

The bug is because the host directories in https://findit-for-me.googleplex.com/config no longer ends with '/', so we should do:
        path = dep_path[len(host_directory + '/'):].strip()
instead of 
        path = dep_path[len(host_directory):].strip()
 

Bug:  768015 
Change-Id: I312ba39b9dfb3311b6402eed5c38280da4f30f3f
Reviewed-on: https://chromium-review.googlesource.com/679555
Reviewed-by: Shuotao Gao <stgao@chromium.org>
Commit-Queue: Sharu Jiang <katesonia@chromium.org>

[modify] https://crrev.com/84a550704bcfeb4635048b7adb2f1cff9fe5f1d1/appengine/predator/app/frontend/templates/clusterfuzz_result_feedback.html
[modify] https://crrev.com/84a550704bcfeb4635048b7adb2f1cff9fe5f1d1/appengine/predator/analysis/test/project_classifier_test.py
[modify] https://crrev.com/84a550704bcfeb4635048b7adb2f1cff9fe5f1d1/appengine/predator/analysis/test/project_test.py
[modify] https://crrev.com/84a550704bcfeb4635048b7adb2f1cff9fe5f1d1/appengine/predator/analysis/project.py