Bug: 7226877
Change-Id: Ib6c32bfee9977c27dbf7e1e590b2b00d9ceb7301

This adds a number to the extension.

Note that for DownloadManager to keep this, the server
needs to send it a mime type it does not recognize. Right
now, it does not recognize application/json so it's okay,
but we'd do well to remove the content/type header from
the server to prevent problems.

Bug: 8467516
Change-Id: Ic484f66ac3f67c36f59f2c0bcb8c7fdeb6e8590d

Bug: 8715614
Change-Id: I307d83923070994525cf0d27aad403e881a89314

Bug: 8600958

Change-Id: Ic472500406b9d54ec4052c490ee7cef62fc4e52a

Bug: 8159728
Change-Id: Ia37ab32b63e4eda29bf1411719d00846525c278f

Bug: 8701480
Change-Id: If8242cfe61f3e56712fd6e25e36858cff7f0d177

Bug: 8159728
Change-Id: I1ab846d0910aacbd2f979289d72bafea8a8e0378

Bug: 8651863
Change-Id: I748f35726d72ede926d5b06ed87ff029317f1ac3

Bug: 8533258
Change-Id: I00e4916f86f29dd476c51a65e8fa5a6c136fd179

Bug: 8600958
Change-Id: I303adfbe25a56cc9b5ee9f3b5169a5bca0ad6c4a

Bug: 8633367
Change-Id: Ifc0f97b1fdf5e5cc3601c24a503058c4822478dc

Change-Id: I954856b7fec0b91e19a467f2a87978d49caa639d

This is a preliminary implementation because the welcome screen video
is just a placeholder.

Bug: 8159728
Change-Id: I6a2459a266babec2f078fc393b18c77b0b7992a8

Bug: 8159728
Change-Id: I05ff6578980ec2e210ebb482ea51b1600e74a4f4

Bug: 8159728
Change-Id: I1578fc31875a1edbfea213fb5e1a1b464d02e941

Also, theoretically, we don't want to retrieve older suggestions if
there are no results for a recorrection - that would look random.
This bug addresses this too.

Bug: 8657919
Change-Id: I44f36d34a708a968ab71fa0592da57f4c97d4b7f

Bug: 8657736
Change-Id: I459d1c200826c1c394f8207475ecf60a4f356793

Bug: 8159728
Change-Id: I62ccbebaae0a0c4a93ad7c155fc3020a7f357f3c

Bug: 8344402
Change-Id: I41b8440f0d72a66fde3f6feb0db8239c9bb10ea3

Bug: 8159728
Change-Id: Ia5a14a35292b43dc1eaa2d4edd65134040355149

Bug: 8159728
Change-Id: I46c77c31973ae492c2a12291f2e0b154f64d26c9

Bug: 8159728
Change-Id: I9f6f04b09b2cefdb7ece76a4f3c39ab56d0c8fab

This is a follow up of Ide3cd3acba.

Bug: 8632344
Change-Id: Iafe51798a1a74eff5d8fcd6f0117d16b419d447d

Bug: 8632344
Change-Id: Ide3cd3acba3987317cff709fa591eadaa71834e8

This is about as ad-hoc as it gets, but then again, what we want
is probably as ad-hoc as it gets.
All URL boxes I know of double as search bars, and not adding
automatic spaces there sucks (e.g. in Chrome URL bar).
And in other boxes actually you don't want to add a space if
it looks like a URL. QSB isn't even a search box, and it behaves
like this.

So I think this is actually the right answer to the problem.

Bug: 7062925
Change-Id: Ib09472b34644fd5bf2dc84bb97cedeeba28bcd02

Change-Id: Ibf2cdedf510c296561bb5eeb6ff18c3414d6d6f4

Bug: 7657025
Change-Id: I2f8fe7fc4596a498322ba5ccabbd0c18a2bc36cf

Change-Id: Ib4d002f90cd3a0e9ad4c04b883b0c1f05ada3ccf

Bug: 8620678
Change-Id: Ia91761f33518a010b2844d34523cadece261c67e

Bug: 8620758
Change-Id: I39f07939ebb6148a48aae5b915ee807002a5b02d

Bug: 8583091
Change-Id: I9195d68e44e9a282e25ccd2978d7b4088f600170

The only place where it's used is checked for nullity.
Also, it's possible, also difficult, to match a different
recapitalize with the old code, triggering a bug that
this fixes.

Change-Id: I717d6df489025c75d1caca290a9086c3b39a9306

Bug: 7980115
Change-Id: I8de31068992aec712eaad132857d9dc61f28e30a

Upon pressing Shift, if there is currently a selected string, have
Latin IME change its capitalization.
This does not yet have the keyboard mode follow the mode - the change
is complicated enough as is.

Bug: 7657025
Change-Id: I54fe8485f44e04efd72c71ac9feee5ce21ba06f2

Bug: 8084810
Change-Id: I1743c09c43ca6835bb2f607684b037bf17d36335

If the user gestures a word, then hits backspace in
disapproval, and gestures about the same thing again,
make sure that we don't suggest the same thing again.

Bug: 7549311
Change-Id: I793bc4df7c3841fa8f2f4146707c26e873f374c1

Bug: 8560722
Change-Id: I825b135bd13aca17e712330660978b834648dbc3

Bug: 8613600
Change-Id: I279d3264080aede59203205c45763c7f8ff08ae6

Bug: 8605150
Change-Id: Iadbebfb80e765c97e58e8524eb87419f2a9e41d4

There are two problems here. The first one is the tests would send
an invalid unicode character. Although we could want dicttool to
handle this more gracefully, it's fine for now.

The second problem is much more serious. If a node has more than
128 children, then the java code will crash trying to read the
dictionary back because of a bug that this change fixes. In
theory, it's possible that happens when we try to load the user
history dictionary back from the disk - native code is not affected
so there is no other point that may cause a problem.
In the practice, that means you'd need to have 129 words with a
common prefix (including empty string) but all different after
this. It's almost impossible with Google Keyboard since there are
only so many keys on the keyboard that you can make a word out
of, and then again you'd have to do it repeatedly until it
actually enters the user history dictionary, wait for it to get
saved on the disk.
The bad news is, if you manage to get this far, the keyboard will
crash every time and won't be able to get up until you clear
data for the package.
The good news is, the dictionary itself is not corrupted and only
the reading code is wrong. So updating to a newer version would
actually even recover from this situation.

All in all, considering how almost-impossible this is to trigger,
I don't think even a single user actually did hit this bug.

Bug: 8583091
Change-Id: Iabb2a7f47cbd9ed3193d2a3487318d280753e071