GitLab

The split will allow generation of edits on multiple configs (e.g. linux
vs windows OR rel vs dbg) and merging the edits before applying them once:
    $ tools/clang/scripts/run_tool.py rewrite_to_chrome_style \
        --generate-compdb --all out/rel >run_tool.linux.rel.out
    $ ...
    $ cat run_tool.*.out \
        | tools/clang/scripts/extract_edits.py \
        | tools/clang/scripts/apply_edits.py
        --generate-compdb --all out/rel >run_tool.linux.rel.out

Test steps:
- tools/clang/translation_unit/test_translation_unit.py
- tools/clang/scripts/test_tool.py rewrite_to_chrome_style
- manually running run_tool | extract_edits | apply_edits pipeline
  on WTF and verifying that it still builds after the rename

BUG=598138
TEST=See "Test steps" above.

Review-Url: https://codereview.chromium.org/2599193002
Cr-Commit-Position: refs/heads/master@{#440881}