Extract initHiddenAPI() from hiddenapi()

Previously, the hiddenapi() method combined both checks to determine
whether a module contributed to/was modified by the hiddenapi process
and logic to create ninja rules to perform those tasks. This change
separates the former out into a new initHiddenAPI() method.

The main purpose of this is to simplify the process of allowing the
CSV generation to be separated from the encoding. That is required
because when a java_import retrieves its dex file from the apex it
has already been encoded.

The initHiddenAPI() method is only called for java.Library (and
indirectly for java.SdkLibrary) and java.Import modules which means
that the hiddenapi() method does nothing for any other module type.
That is consistent with the previous behaviour because while the
hiddenapi() method is called for other module types they fail because
the boot image jars only support java_library, java_sdk_library,
and java_import at the moment. While it will need to support
java_sdk_library_import once any of the libraries that are currently
provided as java_sdk_library modules switches to providing prebuilts
that is outside the scope of this work.

Bug: 178361284
Test: m droid
      Verified that hiddenapi files (both aggregated ones and for the
      individual modules) are not affected by this change.
Change-Id: Iaa91e0a8e2bffec03296dd894e9662556f4464c0

0 files changed, 0 insertions, 0 deletions