The first key and the last of the row are automatically marked as left
and right edge key respectively.  The existence of Spacer will prevent
those automatic marking.

Bug: 5038844
Change-Id: Ie34169ceaf76e24923b8d8125eda6ecb95cf1fee

bug: 5038842
Change-Id: I239a2f35488a1f18ecdb019abc50e72e3e9da297

Bug: 4971680
Change-Id: Ia3485ddcf8051bf7b7ba7f7a37fa75c3bc8a4798

Bug: 4971680
Change-Id: I641b336da54813e13409bd7874aa22e51f790729

This reverts commit 8ebbe03f.

Bug: 5037466

Bug: 5027059
Change-Id: I884a84e50e810c0c4a8255217b39ea24937c756b

Bug: 5035577
Change-Id: I1a11fc475d4a0f692636000d0b0f40bc35427867

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

Bug: 3459274
Change-Id: I41b7617623b5b2e48c2e460dc7f2d5ff410c8a4c

This allows the user to enter a period via double-space after quotes,
currency symbols, brackets and other non-sentence-finishing
punctuation marks.

Bug: 3430389
Change-Id: Ibe40b3902861207eb918e7be6113e8be12216f53

Long press time out for space key is set to 1000msec.
FYI: Time out for shift key is 1200ms and for mini popup keyboard is 400ms.

Bug: 4971680
Change-Id: Id05f519baa15ca2e54958997ddf7b6b3b7a2d078

Bug: 5030817
Change-Id: I13133abb308d9f0c8169b6ea3fc0913ce5dda3d6

Bug: 5030408
Change-Id: I1c5649725780cd063db7a437b8559b7f2573469c

...and adjust internal functions, variables and constant names.

Bug: 3459274
Change-Id: I1b11c6adfee360ac0fc22d627955688b3dbdcffc

Bug: 4161983
Change-Id: Ie163cd17c87773bf2ca37fff7cff79611fff644f

Bug: 5011243
Change-Id: Iaaafa50b42e5155e3682132217d3e079a170ed89

Bug: 5021745
Change-Id: I58815ca3f3c8b1bead895e8a94e2f89dbcc67436

When the User dictionary service is off, LatinIME still allows to add
words to it and it crashed if the user tries to do so. This change
fixes the crash; it does not however fix the interface.

Bug: 5004408
Change-Id: I5bd2684ab3010963c1f737fc764e70e79aadbe8d

Bug: 4768084
Change-Id: I1be83b38c48147827c871c92e17d37da3aeb0f95

This change makes PopupMiniKeyboardView based on KeyboardView, so that
only LatinKeyboardBaseView can manage touch event and PointerTracker.

Bug: 4768084
Change-Id: Id30b132f1fae45da6e79ce822745cf0a653b8eb3

Change-Id: Id2c2d152f54d00842ef9e200ccdce1e13cc128cb

Bug: 4161983
Bug: 4170083
Change-Id: Ife9a933353e97f3c7c3ede47623dc7528160f3c5

Change-Id: I7075d85f745c3b186e6d06086b9fcd54e7459feb

Bug: 4807069
Change-Id: Ic18b2fc526efec58510841884a949a1a0201e7f5

Change-Id: Ie43181721ba18e0c04048eaa9e3016dcea9f5a49

Change-Id: I9face4e90af4bcd6040eb7e303b596af7d643934

This change can retain symbols layout only, can't retain shift or
shift lock state of the keyboard.

Bug: 4311428
Change-Id: I6248ed9a6d762e1ca4b72e391fdca9bc9f55ac35

This bug has been introduced by Idfbc9706.

Bug: 4768084
Change-Id: If9e2a2d3ed1f6b4e6209c883e6fcca52286ede3f

This change also revert KeyboardView to non-abstract class.

Bug: 4768084
Change-Id: I827defb58bfb28b345464f6a89aa4438e41cf1e2

Bug: 4979539
Change-Id: Ib721814bfe80822ded7b0d801f6bc0c854588da4

Bug: 4768084
Change-Id: I446b98daef8c9ec2408481e59cb2a88754ef9e01

Bug: 4768084
Change-Id: Idfbc9706f9daeaa979edeee9064cb69326bd3bbc

Bug: 4979539

Change-Id: I4f2010f785eb29ccd42b488c402ef9957633e0c2

Bug: 4768084
Change-Id: I8fdff864d09321b44d56a6a32e10aec3f0f5a4d1

Change-Id: I7e3211feadf7b87b789040f6dcd6dda84a9d454a

Bug: 4768084
Change-Id: I0be0e07bff2542db6ba764dcb13505dfbff6994e

Change-Id: I8b548e0167791c1f5e46971901d13ee1aadc45da

Bug: 4971680
Change-Id: Ifff27f3bd3dd26417bfcb7072aaba074025b1bb7

Bug: 4768084
Change-Id: Ia28d6971fc59086dd4e6fedc9fd1b50f13b59854

Change-Id: I800e25ca1ecfb11580decd1de147b3f3ae5defb0