Make all KeyboardRow attributes private

Change-Id: Ifaca6ad5e642964d8c3a77a96a1cd74f363ee996

java/src/com/android/inputmethod/keyboard/Key.java

@@ -234,7 +234,7 @@ public class Key implements Comparable<Key> {
     public Key(final Resources res, final KeyboardParams params, final KeyboardRow row,
             final XmlPullParser parser) throws XmlPullParserException {
         final float horizontalGap = isSpacer() ? 0 : params.mHorizontalGap;
-        final int rowHeight = row.mRowHeight;
+        final int rowHeight = row.getRowHeight();
         mHeight = rowHeight - params.mVerticalGap;
 
         final TypedArray keyAttr = res.obtainAttributes(Xml.asAttributeSet(parser),

java/src/com/android/inputmethod/keyboard/internal/KeyboardBuilder.java

@@ -745,7 +745,7 @@ public class KeyboardBuilder<KP extends KeyboardParams> {
             mRightEdgeKey = null;
         }
         addEdgeSpace(mParams.mRightPadding, row);
-        mCurrentY += row.mRowHeight;
+        mCurrentY += row.getRowHeight();
         mCurrentRow = null;
         mTopEdge = false;
     }

java/src/com/android/inputmethod/keyboard/internal/KeyboardRow.java

@@ -38,10 +38,10 @@ public final class KeyboardRow {
     private static final int KEYWIDTH_FILL_RIGHT = -1;
 
     private final KeyboardParams mParams;
+    /** The height of this row. */
+    private final int mRowHeight;
     /** Default width of a key in this row. */
     private float mDefaultKeyWidth;
-    /** Default height of a key in this row. */
-    public final int mRowHeight;
     /** Default keyLabelFlags in this row. */
     private int mDefaultKeyLabelFlags;
     /** Default backgroundType for this row */
@@ -74,6 +74,10 @@ public final class KeyboardRow {
         mCurrentX = 0.0f;
     }
 
+    public int getRowHeight() {
+        return mRowHeight;
+    }
+
     public float getDefaultKeyWidth() {
         return mDefaultKeyWidth;
     }