Refactor KeyboardView and create MiniKeyboardView

Change-Id: I8d68b944762ccde05020978f20b3742eb6ab945b
diff --git a/java/res/layout/input_basic.xml b/java/res/layout/input_basic.xml
index 86ae82d..8666dae 100644
--- a/java/res/layout/input_basic.xml
+++ b/java/res/layout/input_basic.xml
@@ -21,7 +21,7 @@
 <com.android.inputmethod.keyboard.LatinKeyboardView
         xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin"
-        android:id="@+id/LatinkeyboardBaseView"
+        android:id="@+id/latin_keyboard_view"
         android:layout_alignParentBottom="true"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"