This change also removes the usage of "fillBoth" keyWidth from 7-inch
tablet layouts.
Bug: 6480505
Change-Id: I9ed58e0b49138fa9e1610c2b008798eedb19dd26
* Slightly smaller key width and larger shift key and space key.
* Both left and right shift key has the same width.
* Move the 2nd-row slight right.
Bug: 6422448
Change-Id: If27028eaac20c503c352ba35dd156befc53918c7
* For 10-9-7 (qwerty, qwertz), keys' width are 9.0%-9.0%-9.0%
* For 10-10-7 (azerty, hebrew, spanish), keys' width are 8.5%-8.5%-8.5%
* For 11-11-{7,8} (arabic, bulgarian, nordic), keys' width are 7.6%-7.6%-7.6%
* For {11,12}-11-9 (south_slavic, east_slavic), keys' width are 7.6%-7.6%-7.363%
Change-Id: Ife4ce0ac587bd179afcfce0cb5dffb8d82fee4f1