Adding a new annotation to set ChildProcessAllocator settings in tests.
Created a new annotation that lets tests specify settings for the
allocation of child services. It is mostly a clean-up to replace the
current use of the command line annotation with a more specific one.
As a result I had to create a new content specific instrumentation test
runner that registers that new content specific annotation.
BUG=702316
Review-Url: https://codereview.chromium.org/2814533002
Cr-Commit-Position: refs/heads/master@{#463440}
9 files changed
