Alternative possible fix: Don't invoke rebaseline-cl in update-w3c-test-expectations; instead invoke it in update-w3c-deps without a list of specific tests.

I think that rebaseline-cl could handle the task of finding out which tests are rebaselineable, which would simplify the logic in update-w3c-test-expectations, which would then *only* be responsible for updating TestExpectations.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/76d0c6c9d29209f0d205af6bf9ded17ee217fcc1

commit 76d0c6c9d29209f0d205af6bf9ded17ee217fcc1
Author: qyearsley <qyearsley@chromium.org>
Date: Tue Sep 27 20:48:02 2016

In webkitpy-patch rebaseline-cl, don't try to rebaseline non-existent tests.

BUG= 649691 

Review-Url: https://codereview.chromium.org/2371803003
Cr-Commit-Position: refs/heads/master@{#421325}

[modify] https://crrev.com/76d0c6c9d29209f0d205af6bf9ded17ee217fcc1/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline_cl.py
[modify] https://crrev.com/76d0c6c9d29209f0d205af6bf9ded17ee217fcc1/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline_cl_unittest.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c4e50671c1d6124c8cc4b315f9308a365da79df4

commit c4e50671c1d6124c8cc4b315f9308a365da79df4
Author: qyearsley <qyearsley@chromium.org>
Date: Wed Oct 05 18:26:27 2016

Change update-w3c-test-expectations to only rebaseline existing tests.

In this CL:
 - Extract a method get_modified_existing_tests which outputs warnings
   for tests that don't exist.
 - In get_modified_existing_tests, when invoking git diff, add --diff-filter
   so that tests that don't exist shouldn't be gotten in the first place.
 - Update tests and expand test coverage.

BUG= 649691 

Review-Url: https://codereview.chromium.org/2389873002
Cr-Commit-Position: refs/heads/master@{#423227}

[modify] https://crrev.com/c4e50671c1d6124c8cc4b315f9308a365da79df4/third_party/WebKit/Tools/Scripts/webkitpy/w3c/update_w3c_test_expectations.py
[modify] https://crrev.com/c4e50671c1d6124c8cc4b315f9308a365da79df4/third_party/WebKit/Tools/Scripts/webkitpy/w3c/update_w3c_test_expectations_unittest.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0d2ce5afae26790b0d859a9b40dce06d6811821c

commit 0d2ce5afae26790b0d859a9b40dce06d6811821c
Author: qyearsley <qyearsley@chromium.org>
Date: Fri Oct 07 17:15:27 2016

Fix command line argument passed to git diff in update-w3c-test-expectations.

This is a follow-up fix for http://crrev.com/2389873002.

BUG= 649691 

Review-Url: https://codereview.chromium.org/2401973002
Cr-Commit-Position: refs/heads/master@{#423893}

[modify] https://crrev.com/0d2ce5afae26790b0d859a9b40dce06d6811821c/third_party/WebKit/Tools/Scripts/webkitpy/w3c/update_w3c_test_expectations.py
[modify] https://crrev.com/0d2ce5afae26790b0d859a9b40dce06d6811821c/third_party/WebKit/Tools/Scripts/webkitpy/w3c/update_w3c_test_expectations_unittest.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c4e50671c1d6124c8cc4b315f9308a365da79df4

commit c4e50671c1d6124c8cc4b315f9308a365da79df4
Author: qyearsley <qyearsley@chromium.org>
Date: Wed Oct 05 18:26:27 2016

Change update-w3c-test-expectations to only rebaseline existing tests.

In this CL:
 - Extract a method get_modified_existing_tests which outputs warnings
   for tests that don't exist.
 - In get_modified_existing_tests, when invoking git diff, add --diff-filter
   so that tests that don't exist shouldn't be gotten in the first place.
 - Update tests and expand test coverage.

BUG= 649691 

Review-Url: https://codereview.chromium.org/2389873002
Cr-Commit-Position: refs/heads/master@{#423227}

[modify] https://crrev.com/c4e50671c1d6124c8cc4b315f9308a365da79df4/third_party/WebKit/Tools/Scripts/webkitpy/w3c/update_w3c_test_expectations.py
[modify] https://crrev.com/c4e50671c1d6124c8cc4b315f9308a365da79df4/third_party/WebKit/Tools/Scripts/webkitpy/w3c/update_w3c_test_expectations_unittest.py

[Automated comment] removing mislabelled merge-merged-2840

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/daf1ddbd71f55b0765611a7273c74860dbd3d6b2

commit daf1ddbd71f55b0765611a7273c74860dbd3d6b2
Author: qyearsley <qyearsley@chromium.org>
Date: Wed Nov 16 17:52:02 2016

In rebaseline-cl, don't check for local file existence.

I originally added filtering of tests to only include files that exist
locally in http://crrev.com/2371803003.

But now, it seems clearer that this was the wrong choice, since:

 1. Virtual tests don't exist on the local file system
 2. When --issue is passed (when downloading baselines for try jobs
    on another CL), the files don't exist locally.

In order to stop checking for file existence, another little issue
needed to be solved, which was that when getting the list of files
that were changed, the list included deleted files, which we don't
want to rebaseline; so this CL also fixes that.

BUG= 663411 , 656154 , 649691 

Review-Url: https://codereview.chromium.org/2507613002
Cr-Commit-Position: refs/heads/master@{#432548}

[modify] https://crrev.com/daf1ddbd71f55b0765611a7273c74860dbd3d6b2/third_party/WebKit/Tools/Scripts/webkitpy/common/net/rietveld.py
[modify] https://crrev.com/daf1ddbd71f55b0765611a7273c74860dbd3d6b2/third_party/WebKit/Tools/Scripts/webkitpy/common/net/rietveld_unittest.py
[modify] https://crrev.com/daf1ddbd71f55b0765611a7273c74860dbd3d6b2/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline_cl.py
[modify] https://crrev.com/daf1ddbd71f55b0765611a7273c74860dbd3d6b2/third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/rebaseline_cl_unittest.py