Slightly wider keys for 7-inch tablet layouts

This change also removes the usage of "fillBoth" keyWidth from 7-inch
tablet layouts.

Bug: 6480505
Change-Id: I9ed58e0b49138fa9e1610c2b008798eedb19dd26
diff --git a/java/res/xml-sw600dp/rows_colemak.xml b/java/res/xml-sw600dp/rows_colemak.xml
index a943818..f7e903b 100644
--- a/java/res/xml-sw600dp/rows_colemak.xml
+++ b/java/res/xml-sw600dp/rows_colemak.xml
@@ -24,7 +24,7 @@
     <include
         latin:keyboardLayout="@xml/key_styles_common" />
     <Row
-        latin:keyWidth="8.5%p"
+        latin:keyWidth="9.0%p"
     >
         <include
             latin:keyboardLayout="@xml/rowkeys_colemak1"
@@ -33,30 +33,29 @@
             latin:keyboardLayout="@xml/key_colemak_colon" />
         <Key
             latin:keyStyle="deleteKeyStyle"
-            latin:keyWidth="fillBoth" />
+            latin:keyWidth="fillRight" />
     </Row>
     <Row
-        latin:keyWidth="8.5%p"
+        latin:keyWidth="9.0%p"
     >
         <include
             latin:keyboardLayout="@xml/rowkeys_colemak2" />
         <Key
             latin:keyStyle="enterKeyStyle"
-            latin:keyWidth="fillBoth" />
+            latin:keyWidth="fillRight" />
     </Row>
     <Row
-        latin:keyWidth="8.5%p"
+        latin:keyWidth="9.0%p"
     >
         <Key
             latin:keyStyle="shiftKeyStyle"
-            latin:keyWidth="11.75%p" />
+            latin:keyWidth="10.0%p" />
         <include
             latin:keyboardLayout="@xml/rowkeys_colemak3" />
         <include
             latin:keyboardLayout="@xml/keys_comma_period" />
         <Key
             latin:keyStyle="shiftKeyStyle"
-            latin:keyXPos="-11.75%p"
             latin:keyWidth="fillRight" />
     </Row>
     <include