If we have the same text field, then the target app is
necessarily the same. No need to re-evaluate it.

Bug: 8636060
Change-Id: I66eb194c4cd08a6c1d47b26b99bd7f420130097e

Bug: 8636060
Change-Id: Iec7c1001c46cf8e9a44422e3f9008e437cc5cab6

Bug: 8636060
Change-Id: I3d00095cd0e83d1ee3834b37ff188b5aa9806fcb

This change also fixes build broken by Id615556766.

Change-Id: I16605cc3b65e3e9ab2d5a498825c31d9b4046b73

Also not-cache a value whose documentation says not to cache
it. That makes it write only, so remove it.

Bug: 8636060
Change-Id: I39798a039cebf79ad78a41fe457c9d9764a3f275

Dynamically test for the presence of main dict suggestions. This
is much more potent and more accurate than the vaguely defined
boolean.
Also, resolve a TODO and avoid creating an object uselessly.

Not directly related, but helpful with:
Bug: 8636060

Change-Id: Ib1745f77ee6d9ec7cd8bbfa5a548652ec84ec902

Bug: 12222472
Change-Id: Id615556766718a8bd4848f7026833fbcea540c39

Change-Id: I1a88d9fc4db437070778ea1256aae17c32428729

Bug: 8636060
Change-Id: I4bfdf1628c9b55a79bd2d88ee30bf10b08a49232

Bug: 8636060
Change-Id: I6338dcee0f7a80f2181ba0369f71350cb21d231a

It's only ever used in one place and makes unhealthy assumptions
about what the caller is doing. It's better inlined.

Bug: 8636060
Change-Id: I265d5d96894e929d09247ee2e3dc2e81efc2a276

Bug: 8636060
Change-Id: I99474248e8fa35eb3053b5520abc8716805fdfb4

Make some methods private and add comments.

Bug: 8636060
Change-Id: I6c7d13dca8a22dd1a6f110e8b18d52864429579f

Bug: 8636060
Change-Id: Ia5788b365f05ae880bad957cbef00ecc93abb5d1

Bug: 8636060
Change-Id: I405c4a537858a6d5ab0b29502a2792e8c3b2564e

Also move getActualCapsMode and getNthPreviousWordForSuggestion

Bug: 8636060
Change-Id: I1ee9162d0b7a517070c4b7420b084c973f061533

Bug: 8636060
Change-Id: I5bf2b1fa2f9338fe28151e66eac1ceda6dbd4a7f

Also move swapSwapperAndSpace, maybeDoubleSpacePeriod,
maybeStripSpace, promotePhantomSpace and canBeFollowedByDoubleSpacePeriod

Bug: 8636060
Change-Id: I864053d21c4b3d51ee7a3cd79053ca602337f6f8

Bug: 8636060
Change-Id: Id76889f8405458bcacb9c7c694cb193b27b842f3

Bug: 8636060
Change-Id: I9c6869c85db49d7f87e95a421389eaf47ae3ab2e

Also move resetEntireInputState, resetComposingState,
sendDownUpKeyEvent, sendKeyCodePoint and getTextWithUnderline

Bug: 8636060
Change-Id: Ic4c270ac49769ffba41dc3f12d16ac3aa938717f

Bug: 8636060
Change-Id: I8c5c028d81183adb0167b2034ee01de8048edafb

Create an InputEngine class and start moving the relevant
variables to it.

Bug: 8636060
Change-Id: I64adef4ac01e665c19bb7c5b93517a0cbd03d817

Bug: 11142685
Change-Id: Ic3a5d452f6c325248ac4e1bfa37774c58586f359

Bug: 11757851
Change-Id: I83e484195f036e35cbae21fe63148bc9c22bfad7

Bug: 12164855
Change-Id: Ie4d8be9f2652b01470bcc06911e2191e09fb3149

Bug: 12164855
Change-Id: I26faf27edfa303510197bccaa3521578f649741d

Bug: 11245133
Change-Id: I0907a091ac3ae960eaf3b27da78dbb48a24b2ea1

Bug: 10010128
Change-Id: I2ff0870c69f407d943caf8b9cec90b7ed89de5f1

Change-Id: I7ea6c59b7c980e93c88a6cf0fef97592d411c3ba

Bug: 12096943
Change-Id: Ib8559f030fbc27ec7f7e9a9fb36aad72cca29e9f

Bug: 10010128
Change-Id: I82aa4ce847e66cb1241678f39b47b9e27a0f555a

This is simpler and more correct.

Change-Id: I41806d2fc12b4ca25f76e32972b38f91f3d05c2b

Bug: 11073222
Change-Id: I3878aef02040b1ef73165645fc70ede586289c51

Bug: 11073222
Change-Id: I681be725b5c6dcc10aa536b00327698a7df75277

This does the same thing, but simpler and faster.
Was noticed while investigating bug#12164555

Change-Id: If9926e4da8a53a65489da55197ac87122c44fe7c

Bug: 11757851

Change-Id: I4872c10793d4fd55c0bd9e5bc4650925de6d2c1d

Bug: 10629042
Change-Id: I111d092fb2f7dca47328127a155c981aa1c55906

Change-Id: Ifb17d6551bc5071553e32a5640dd166c39374461

Change-Id: If780a2a1cb722aee83d910904c0a6315add9552d