Bug: 5095140
Change-Id: I02032923ca2a65bd8fbabc0abbe6a476f7542187

This change refactors the dictionary selection code so that the
cached dictionary files list and the settings tests are more
cleanly separated.
This will also help with future refactorings that will test for
the presence of the main dictionary and insert the fall back if
it's not supplied by the dictionary pack.

Bug: 5095140
Change-Id: I8d7caad7c054031df71fe78b043801a774d50f65

Now that the dictionary pack can return several files, it's better
to handle IO exceptions for each file rather than globally. This
also will help with next implementation steps.

Bug: 5095140
Change-Id: I5ed135ad2ad4f55f61f9b3f92c48a35d5c24bdb2

This is essentially refactoring to help next steps

Bug: 5095140
Change-Id: Ic97044d2ed354027bac4f84e6ce69d20ef6da092

Bug: 5095140
Change-Id: I227fbd95d8a0330b6dede6de99fde3a5a715fe2d

Dictionaries are now copied over from the dictionary pack to Latin IME.
This change enables Latin IME to use all dictionaries that have been
cached until now.

Bug: 5095140
Change-Id: Id9a2bacf9dc1c693189b0ac8aa3f75756dc1e3e6

Bug: 5095140
Change-Id: Idf66a04c6a1a05015f94187a8dbce3d443bbf38b

The dictionary filename used to be passed directly to Latin IME.
This change implements, on the part of Latin IME, the passing of
them as an id that should then be passed through
openAssetFileDescriptor.

Bug: 5095140
Change-Id: I7d1e9d57c19f0645045368f68681680f238189fc

This is necessary because we don't know any more whether the
locale of the process is the expected one when the dictionary
is loaded asynchronously.

Bug: 5023141
Change-Id: Ia9e4741f3b4a04a9f085f5b65ec122471b0c2dff

None of these are expected to actually be null, but those are
included for peace of mind and foolproofing against future
code changes.

Bug: 4580040
Change-Id: Ib112b3e5db5f177aaf61767164b7e78d711f90a0

One of the two methods for getting a dictionary from the dictionary
pack had a bug and would not tolerate not getting an actual dictionary.
This change fixes that.

Change-Id: Id58bb27258494fb3aa60ec07a4eb27cfb5cc7279

This change enables the interface to get multiple dictionaries from a
dictionary pack. It only implements it to the end in the case of the
proprietary method, as the open method needs still some working out,
and the "inside the package" method does not need it.

This change goes together with Iaa95bf36, and breaks the build
without it.

Bug: 1752028

Change-Id: I3ccfd696e8ef083ef9c074e1c3e4bb0bf2fcfd23

This change is only there to fix warning issued by Eclipse.
It should have absolutely no impact on the program logic.

Change-Id: Ie0e242ac6c167297d33de19902340b0f6ecae9e1

This change adds basic support for an external dictionary provider.
It adds methods for reading the dictionary itself from an asset in
the dictionary provider package directly, obtaining the file name
through the ContentProvider interface; it also adds a way of getting
the data through an InputStream and copying the file locally.

Incidentally this change also adds the code needed to listen for
updating the dictionary provider package and reloading it in time.

This change also goes hand-in-hand with Iab31db6e, which implements
the small closed part of this.

Issue: 3414944

Change-Id: I5e4fff99a59bb99dbdb002102db6c90e6cb41c8a