The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/ec84c8fc71cb1ba99d0eb149eb8339844746f1d0

commit ec84c8fc71cb1ba99d0eb149eb8339844746f1d0
Author: Sharu Jiang <katesonia@google.com>
Date: Sat Sep 30 01:10:54 2017

[Predator] Use repo_to_dep_path in config to find components.

The repo_to_dep_path in config is like this:
{
  "https://boringssl.googlesource.com/boringssl.git": "src/third_party/boringssl/src",
  "https://chromium.googlesource.com/android_tools.git": "src/third_party/android_tools",
  "https://chromium.googlesource.com/angle/angle.git": "src/third_party/angle",
  "https://chromium.googlesource.com/aosp/platform/system/core/libsync.git": "src/third_party/libsync/src",
  ...
}
By using this mapping, we can easily map repo_url to dep_path relative to chromium. So this method will work for component stand alone builds, like d8.

Bug:  765842 
Change-Id: I5a7de0d46568cf142436e728d6ca6d484a190304
Reviewed-on: https://chromium-review.googlesource.com/685942
Commit-Queue: Sharu Jiang <katesonia@chromium.org>
Reviewed-by: Shuotao Gao <stgao@chromium.org>

[modify] https://crrev.com/ec84c8fc71cb1ba99d0eb149eb8339844746f1d0/appengine/predator/analysis/component_classifier.py
[modify] https://crrev.com/ec84c8fc71cb1ba99d0eb149eb8339844746f1d0/appengine/predator/analysis/predator.py
[modify] https://crrev.com/ec84c8fc71cb1ba99d0eb149eb8339844746f1d0/appengine/predator/analysis/linear/changelist_features/test/touch_crashed_component_test.py
[modify] https://crrev.com/ec84c8fc71cb1ba99d0eb149eb8339844746f1d0/appengine/predator/app/common/predator_app.py
[modify] https://crrev.com/ec84c8fc71cb1ba99d0eb149eb8339844746f1d0/appengine/predator/analysis/test/component_classifier_test.py

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/5d6cbd3dc5afda9fe393c6c7f4653528026f7534

commit 5d6cbd3dc5afda9fe393c6c7f4653528026f7534
Author: Sharu Jiang <katesonia@google.com>
Date: Sat Sep 30 01:26:54 2017

[Predator] Pass root repository path and root repository url to GetDepPathAndNormalizedFilePath normalize paths.

For d8 stand-alone builds, we should pass 'v8' as root path instead of the 'src' for chromium build.

Bug:  765842 
Change-Id: I5995b63a9a9e669065306d87d08c67e0d16856c4
Reviewed-on: https://chromium-review.googlesource.com/685543
Commit-Queue: Sharu Jiang <katesonia@chromium.org>
Reviewed-by: Shuotao Gao <stgao@chromium.org>

[modify] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/app/common/model/crash_analysis.py
[modify] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/app/common/model/test/clusterfuzz_analysis_test.py
[add] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/analysis/constants.py
[modify] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/analysis/crash_report.py
[modify] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/app/common/model/clusterfuzz_analysis.py
[modify] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/app/common/model/test/crash_analysis_test.py
[modify] https://crrev.com/5d6cbd3dc5afda9fe393c6c7f4653528026f7534/appengine/predator/analysis/parse_util.py

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/15c7c45c750a20c4a45dcb497cb9cb56b3e17ee2

commit 15c7c45c750a20c4a45dcb497cb9cb56b3e17ee2
Author: Sharu Jiang <katesonia@google.com>
Date: Sat Sep 30 01:47:44 2017

[Predator] Pass root repo url and root repo path to parsers.

Bug:  765842 
Change-Id: Ia3af7219a4cc6885ca35b5afc6cc4d4602ac14db
Reviewed-on: https://chromium-review.googlesource.com/685991
Commit-Queue: Sharu Jiang <katesonia@chromium.org>
Reviewed-by: Shuotao Gao <stgao@chromium.org>

[modify] https://crrev.com/15c7c45c750a20c4a45dcb497cb9cb56b3e17ee2/appengine/predator/analysis/stacktrace.py
[modify] https://crrev.com/15c7c45c750a20c4a45dcb497cb9cb56b3e17ee2/appengine/predator/analysis/analysis_testcase.py
[modify] https://crrev.com/15c7c45c750a20c4a45dcb497cb9cb56b3e17ee2/appengine/predator/analysis/clusterfuzz_parser.py
[modify] https://crrev.com/15c7c45c750a20c4a45dcb497cb9cb56b3e17ee2/appengine/predator/analysis/clusterfuzz_data.py

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra/+/a68192f274d6f49c57f97a3d98fde76c5a1770a0

commit a68192f274d6f49c57f97a3d98fde76c5a1770a0
Author: Sharu Jiang <katesonia@google.com>
Date: Sat Sep 30 02:05:24 2017

[Predator] Adding fallback for project classifier when the stacktrace is empty.

When we failed to parse a stacktrace, we can still get the project by classifying the root repo dep path of the testcase.

This fallback can give results in v8_fozzie cases like this:
https://findit-for-me.googleplex.com/clusterfuzz/result-feedback?key=ahpzfmdvb2dsZS5jb206ZmluZGl0LWZvci1tZXJBCxITQ2x1c3RlcmZ1enpBbmFseXNpcyIoZDUzOTY1YmVlYjQ0YmViMGYwYjkzYzhjNGEzMDQxOTI3NGViNmEyOAw

Bug:  765842 
Change-Id: I735989a157d4df3fde5a086b20aa0c225c795a0e
Reviewed-on: https://chromium-review.googlesource.com/677779
Commit-Queue: Sharu Jiang <katesonia@chromium.org>
Reviewed-by: Shuotao Gao <stgao@chromium.org>

[modify] https://crrev.com/a68192f274d6f49c57f97a3d98fde76c5a1770a0/appengine/predator/analysis/project_classifier.py
[modify] https://crrev.com/a68192f274d6f49c57f97a3d98fde76c5a1770a0/appengine/predator/analysis/predator.py
[modify] https://crrev.com/a68192f274d6f49c57f97a3d98fde76c5a1770a0/appengine/predator/analysis/test/project_classifier_test.py
[modify] https://crrev.com/a68192f274d6f49c57f97a3d98fde76c5a1770a0/appengine/predator/analysis/project.py