Bug: 9550800
Change-Id: I087205530a5dbcff4bf08f48f4aa7068aae93215

Mostly remove unused imports

Change-Id: If8ceffdfad79b78194094527759f5c334746973e

Currently isAllowedToLog only checks the state of the
ResearchLogger, and does not consider which log the data is
going to.  This causes problems with the logs for Feedback.
The Feedback log should inhibit normal logging procedures,
but the system needs to be able to write specific data
directly to it.

This change renames to isAllowedToLogTo and adds the
destination ResearchLog as a parameter.  A FeedbackLog is also
added as a new class so it can be distinguished from other
ResearchLogs.

Change-Id: I5a1eea05bb040c26bf816b89179f44b3024fa2ad

JsonWriter requires that its clients pass it only a single top-level object.
The existing implementation tries to make code cleaner by having mJsonWriter
never be null, and instead use a global static "NULL_JSON_WRITER" that just
discards data.  But because JsonWriter complains if more than one top-level
object is passed, making this a global object does not work.  This change
instead copes with mJsonWriter being null.

Change-Id: Ia37ccfc8646e91f11a64713dd92d2846eb86ac54

JsonWriter requires that data be written to it, else close() will throw
an exception.

Change-Id: I596c5363e063cc75bcda55e0a506eefb3f17bd67

bug: 8393568
Change-Id: Ie5edf44a3627aca9416145aff56bf05bbf2a05f3

Previously used a monotonically increasing int.  Now uses uuid and nanoseconds.

squashed in:
    [FileEncap11] Read preference from ResearchSettings
    Change-Id: Ic779e0a69db6b16e92c6f4b63dbe7b7add566ab6

    [FileEncap12] Simplify directory cleanup invocation
    Change-Id: I688047409c0343d32b11447fb625dfb726c731ec

    [FileEncap14] Change log filename syntax
    Change-Id: I9243b20b2eb392f81ab8c5c3d19315211240e0bc

Change-Id: I5c9d70e0cb7b0965158e17dd71dfab796bd9a440

Change-Id: I721afbf426099753aa876a55323eb806b08c24d6

Change-Id: I4daec20b7b47b0d71c5aab6e17cd660015e19e71

Change-Id: If2107e38575b009a4c372194ecd827e27bdbb2b4

Change-Id: Ia8e0bd72b0dc09bfc256ec5d1996637554376b5f

Change-Id: If15f250feb81c2ad55ce1bc7dc3dafa57de87aef

Change-Id: I4e97fa28dd0bb1101edc0db03f024432fee6f6fe

Change-Id: Id9a72045afa3558b20b9d63c8720fb7443d34fd9

multi-project commit with I1212da392ecda0ad78962da68941870b5a651eee

Change-Id: Ie74af59d4e45bf954723fee9dcf350a36468c381

Previously, words were pushed out of a LogBuffer one at a time.  The receiving code had to keep
state to know whether a n-gram was safe to log.  This patch looks at the entire n-gram and makes a
single decision based on it alone.

mult-project commit with I3c40d7e02c77943d2668094ddb1d03efb942c74f

Change-Id: Id7d90bbd551b1a2f4e0e35f38852652f68f273f8

Change-Id: Ic56167f952a7f4449da366e1e81610e72c966086

multi-project commit with If6b9f8990d7cdbf570740a81096513698d0e0f4c

Change-Id: I124aed24be0beb4c472869594184ecf003c2fed4

Change-Id: Ia3fca4881370ffcdd5f2b14d2d1094c51f4330ae

Move specifics of Log output format from ResearchLog to LogUnit

Change-Id: I9d0253c50bb8175ab141bd87dd9a09f39f316b10

The IS_EXPERIMENTAL_DEBUG flag gives a single place to turn off all debugging flags that might be
set and to also enforce privacy controls.  Currently only used in the research package.

multi-project commit with I9275a7c8e40bf56106447a02d3056655329074b3

Change-Id: If769fe3a633f33963ca49e8ddf01ab24a30b6fd2

multi-space logging should look like single-space logging, missing a few minor log statements
(SuggestionUpdates, SetComposingText)

multi-project commit with I2af842348c2f2b8f7271ac5b63def245e83df24d

Change-Id: Icd3187c0d0377255f82787afffea657c14345803

Log statements are now recorded with a timestamp.  This is important for filtering out statements
not part of words that are sampled when spaces are inserted automatically.

multi-project commit with Change-Id: I68221a2528045d25632aef4bb716f92a4f4a56a4

Change-Id: I46ac9b3b1dcbb08425160d0109028cb64445139c

This reverts commit bdbe279c

Other half of this change couldn't be committed because of a inter-project directory migration.  Reverting until things settle down.

Change-Id: I3862fc8485dfca6d507f620e905cfa583aa0e39a

Log statements are now recorded with a timestamp.  This is important for filtering out statements
not part of words that are sampled when spaces are inserted automatically.

multi-project commit with Change-Id: I68221a2528045d25632aef4bb716f92a4f4a56a4

Change-Id: I9f49c36391e1e1773b6d4876d7387c893024f87b

Change-Id: I0abb4a1ad67666162ab6703ffdb33c5e0675be93

Bug: 6188932
Change-Id: I31c0f380b334d9117990f2d92de8d385e4a52c7c

This change also removes per-Key verticalGap and horizontalGap.

Change-Id: Id4d2129022fbbfbf5d740b8d1257032c945bb775

- Captures complete motion data for all words in an n-gram.
- Also filters n-grams properly; if any word in the n-gram is not
  in the dictionary, it is not included.
- Simplify ResearchLog to not require explicit state
- Added LogBuffer class MainLogBuffer class to allow n-gram-level decisions
  about privacy.
- Moved LogUnit out from ResearchLogger

multi-project change with Ic70ccb6c2e11eb02d887821434b44daa3eb7a3e2

Bug: 6188932
Change-Id: I731d6cff6539e997874f723b68bdb0d9b651b937

This reverts commit 221e756f

Change-Id: Iefc4e4e27ddc925d4a4634627b0467bd4ee2a66e

DO NOT MERGE

- Captures complete motion data for all words in an n-gram.
- Also filters n-grams properly; if any word in the n-gram is not
  in the dictionary, it is not included.
- Simplify ResearchLog to not require explicit state
- Added LogBuffer class MainLogBuffer class to allow n-gram-level decisions
  about privacy.
- Moved LogUnit out from ResearchLogger

multi-project change with Ie2bc79fd7fe6b951b24771e94b8d4ca21989af65

Bug: 6188932
Change-Id: I568c90d4af07e7c759c1e7fc64b716bd8c7b4ae5

Change-Id: Ia710721774a85ee8ac20ba1f1dc117768e281190

- Captures complete motion data for all words in an n-gram.
- Also filters n-grams properly; if any word in the n-gram is not
  in the dictionary, it is not included.
- Simplify ResearchLog to not require explicit state
- Added LogBuffer class MainLogBuffer class to allow n-gram-level decisions
  about privacy.
- Moved LogUnit out from ResearchLogger

multi-project change with Id997fb6572daa3ff55591afa1676953bb204f33a

Because of a strange Gerrit interaction, earlier patchsets were recorded
as the following separate changes (to soon be abandoned):

- I59d86ae28123890ddb7aabc7dc9a73a75eecbca4
- I9cc95266fa4500d019e09ec53ec00e5dea7ffd38
- Ie6f23a2035e160f231406df1388a43725380df1d
- Id87909e96fa7fa91174c86395a964404f3490fe1
- I57c5cbde0425c42538d589fa4d1802b3e5688f7c
- Ic1f9d7727e416da1b6c4f1a45b53750cd4088dcf
- I20a72ccc4ba1bc08ed3ee39bff71d2adb376588c
- I417f6f364144b90085f5fef4bd2de1a40b5dfa79

Bug: 6188932
Change-Id: I771e57e3b8c0eb6721c2022e775cb0b528bdff93

- new package: com.android.inputmethod.research

multi-project commit with Ic0a5744f3160d13218addd589890623c0d120ffc

Bug: 6188932

Change-Id: Icf8d4a40a5725401799be6e209a640d99a5f34c4

Bug: 6188932
Change-Id: I692e427ba2e6da7bb15f48208304c4a034392a22

- separate ResearchLog from ResearchLogger
- fix abort menu to explicitly indicate re-enabling of logging
- auto flush entries every 5s
- conform to new suggestedWords class

multi-project change with I9fe1f8fe59d5891daa4ca84af157f36fb1bb17dc

Bug: 6188932

Change-Id: I7e99390f934481c6ed9cea2b259944583edda5bb