First step towards constraining how the targets system can be used
with the eventual goal of dismantling target system altogether.
As part of the many modernization efforts in place, we should
be targeting mobile experiences by default. For now I am
targeting only modules that are writing ES6 code for desktop
only. In future this should be expanded to modules using
packageFiles and modules targetting mobile only.
The implication of this change is that any ES6 module that has
not specified targets, will now automatically load on mobile site.
In the case of the 3 depends-on there doesn't seem to be any
problem with targeting mobile as the way these modules are
loaded is restricted based on context.
We will log warnings to inform us where modules disobey this
rule.
Bug: T323542
Depends-On: I2e31ba2bd2aea192f428531f6c92afa551448fef
Change-Id: Iff6bfbba406dec5b8c8be644dbf21ee3b3879fda
15622ea09a