Previously we had a few customized Gradle build task to manage
the Docker container for provisioning browser and ChromeDriverService
used by WebDriver tests. This CL changed to use a java library
from testcontainers.org to achieve the same purpose. The main
benefit of it is that we can expect to run the WebDriver tests
from IDE going forward.
Also, this CL refactored the structure of WebDriver related classes
to have JUnit rule to manage the lifecycle of WebDriver instance,
this is also compatible with the API from testcontainers library.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=241539861
This change does a few things:
1. Partially externalized WebDriver tests by using ChromeDriver
as an implementation of WebDriver API in the external build.
2. Refactored WebDriverRule.java to decouple the creation and
using of WebDriver related stuff so we can have different
implementations in internal and external builds.
3. Refactored the usage of some internal libraries to have a
central place to store all of them to make it easier to
remove them in the external build.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=233661757
