This is a preparatory change for
Bug: 4967874
Bug: 6617760
Bug: 6950087

Change-Id: I3abf8e45c0d02c42491421f108370220134b9602

Move many ResearchLogger data collection points to RichInputConnection.
By collecting data here, developers do not have to remember to keep the
ResearchLog consistent with calls to the RichInputConnection.

In addition, some unnecessary log points were removed, and the ResearchLogger
is now independent of LatinImeLogger.

multi-project change with I05496cfd762e9a41c42c50099143f1efc0a3d8a2

Bug: 6188932
Change-Id: I424abb2e437901262a9620255493916b7c3ff74b

This reverts commit d0c41e0c

Change-Id: I5fd8a67a9fdadb7e6532cafecd00c8f33a00ec72

Move many ResearchLogger data collection points to RichInputConnection.
By collecting data here, developers do not have to remember to keep the
ResearchLog consistent with calls to the RichInputConnection.

In addition, some unnecessary log points were removed, and the ResearchLogger
is now independent of LatinImeLogger.

multi-project change with Ifbabefc008d32d99f89e8289e504188e7232ebd4

Bug: 6188932
Change-Id: I4a42d963ba952e703d425acd3a9871d5fca1f03a

This reverts commit 1964ffb3

Change-Id: Ie43e7ac828faa91e1824a255bb3ecf6c8222d4e8

Move many ResearchLogger data collection points to RichInputConnection.
By collecting data here, developers do not have to remember to keep the
ResearchLog consistent with calls to the RichInputConnection.

In addition, some unnecessary log points were removed, and the ResearchLogger
is now independent of LatinImeLogger.

multi-project change with Ib71f841044ec1072610ab5638a5edfce29b7c05b

DO NOT MERGE

Bug: 6188932
Change-Id: I9ec7500a5b18bfe1a5a5bb1e5bf21c43351fc59e

- new package: com.android.inputmethod.research

multi-project commit with Ic0a5744f3160d13218addd589890623c0d120ffc

Bug: 6188932

Change-Id: Icf8d4a40a5725401799be6e209a640d99a5f34c4

Change-Id: I6e7c3aba2b40ecefa483c9680978bc806368e96e

Bug: 6766059
Change-Id: I378f9d35c4904c4f373260bda5863235d833eb31

This has a good, although small, impact on performance : it removes
a two-way IPC call in a most frequent case, while possibly adding
one in a rather unfrequent and less critical case.

Also, this fixes a bug with surrogate pairs. This specific branch
of code now correctly handles surrogate pairs.
Aside from this, it should have no impact on behavior.

However, since it does delay access to the previous character in
the text view by a two-way IPC call, it actually goes a long way
toward fixing bug#6668226. It is not really a fix and the race
condition still exists, but this change makes it much, much
harder to hit.

Bug: 6668226
Change-Id: Id11cc6a0b7488d6bd392227cafdcf3a8d4c62f6c

This is harmless, but against policy.
Also, rework the checking code to be more readable, give more
information, and be called for all relevant methods - and not
for informative methods, which are not required to be in a
batch edit.

Change-Id: I03fa8b2e7d68a6a133f86be8a214671750c29256

Change-Id: I512b04e23490413a44b1ca0517102fe2d9138df3

Change-Id: Ie143ad008ca8deb1c5034cb80ec1cb28a6b0682d

Change-Id: If8d03bea1b6369cb3043da6321048d052995d664

Change-Id: I8527776a4bd8236a85bb77f9791f9b76977ad181

Change-Id: I9982ff325bef56694402caef28a77683c52ccd71

The goal is to simplify the code in LatinIME.java as well as having
a handy place to put debug calls to see interaction with TextView.

Change-Id: I255227e7e7343e0c2f3dcd1f185e5020d6186732