When running tests in 'with patch', we want to ignore failures if there is a single success.

When running tests in 'without patch', we want to ignore successes if there is a single failure.

This works, but only with some very convoluted logic.

For GTests, the relevant logic is at:

https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/test_utils/api.py?type=cs&q=scripts/slave/recipe_modules/test_utils/api.py&sq=package:chromium&g=0&l=221

https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/chromium_tests/steps.py?type=cs&q=scripts/slave/recipe_modules/chromium_tests/steps.py&sq=package:chromium&g=0&l=355

https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/chromium_tests/steps.py?type=cs&q=scripts/slave/recipe_modules/chromium_tests/steps.py&sq=package:chromium&g=0&l=1572

https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/test_utils/util.py?type=cs&q=scripts/slave/recipe_modules/test_utils/util.py&sq=package:chromium&g=0&l=263

The line that causes us to ignore all but the last test in an iteration is:
https://cs.chromium.org/chromium/build/scripts/slave/recipe_modules/test_utils/util.py?type=cs&q=scripts/slave/recipe_modules/test_utils/util.py&sq=package:chromium&g=0&l=259

This logic happens to work because in 'with patch', retries are reported in a single iteration, but for 'without patch', retries are reported in multiple iterations. 

We should make this explicit. self.passes and self.failures should present exactly what they suggest [every pass and failure], and we should add some custom logic to run_tests_with_patch to cause us to look for a single success, and etc. for 'without patch', 'retry with patch'.