DONTBUILD NPOTB
Using the real Android manifest tripped up Robolectric, so I've taken
the easy way out and added a dummy TestGeckoApplication; see comment
in the code.
This is the last Gradle project that isn't in the srcdir. Since base/
doesn't have the correct package prefix directory structure, we still
need to symlink, but we only need one link. This effectively
deprecates |mach gradle-install|.
This should improve the robustness of our Gradle configuration,
ensuring that we always have projects to import. Since
settings.gradle executes very early in the IDE import project
sequence: before Gradle project evaluation time, and thus before any
Gradle task is executed, we should always see a complete project. (It
was possible to see incomplete Gradle configurations if |mach
gradle-install| hadn't been run at just the right time.)
DONTBUILD NPOTB
The :omnijar project is for IntelliJ only; adding it neatly labels
folders we consider part of the omnijar in mobile/android. The JAR
produced is not used.
We add an evaluation-time dependency from :app to :omnijar so that we
can declare the set of omnijar folders exactly once. We'd prefer to
have the dependency in the other direction (to save evaluation time)
but there's an interface mismatch between the two Gradle model types.
See comments in the :omnijar project.
This is delicate.
The sub-project definitions are still in the object directory (and
still installed by |mach gradle-install); over time, we'll migrate
them out.
The Gradle wrapper and {settings,build}.gradle in topsrcdir are
identical to those in mobile/android/gradle. I don't like the
duplication, but I also don't want the burden of keeping the two
configurations identical. We'll move away from the configuration
using mobile/android/gradle as quickly as we can.
