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This adds tools/code_coverage from Chromium to DEPS and converts our
existing coverage_report.py to use it instead of gcov & lcov. This
generates a different format of HTML report, but the content appears
to be the same. Some of the coverage numbers changed a bit, due to
differences in how llvm-cov and gcov calculate executable lines, but
drilling down into the reports I think llvm-cov is more accurate
overall and there are no major discrepancies.
Large portions of the existing script are left as is and just the
report generation has been changed. I plan in follow up CLs to remove
the duplication of functionality in the PDFium scripts and modularlize
the upstream code better.
BUG=pdfium:1069
Change-Id: I009bfb8aac8f1a878e01ff70923e19bbb4774a9c
Reviewed-on: https://pdfium-review.googlesource.com/32894
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
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