Tune up 7 inch keyboard layout

Bug: 4479212
Change-Id: I25c48ef474f6198dde9b670b23509c087acae149
diff --git a/java/res/values-sw768dp-land/dimens.xml b/java/res/values-sw768dp-land/dimens.xml
index 81d91ce..73885c2 100644
--- a/java/res/values-sw768dp-land/dimens.xml
+++ b/java/res/values-sw768dp-land/dimens.xml
@@ -31,10 +31,10 @@
     <dimen name="keyboard_bottom_padding">0.0mm</dimen>
     <dimen name="keyboard_horizontal_edges_padding">0.0mm</dimen>
 
-    <fraction name="key_letter_ratio">30.7%</fraction>
-    <fraction name="key_label_ratio">21.9%</fraction>
+    <fraction name="key_letter_ratio">38%</fraction>
+    <fraction name="key_label_ratio">26%</fraction>
     <fraction name="key_hint_letter_ratio">23%</fraction>
-    <fraction name="key_uppercase_letter_ratio">25%</fraction>
+    <fraction name="key_uppercase_letter_ratio">24%</fraction>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">18dip</dimen>
     <dimen name="key_preview_height_holo">26.5mm</dimen>