[SD12] Add the last remaining scripts

Add scripts for Bengali, Devanagari, Kannada, Malayalam,
and Tamil.
Also include a very minor fix for Arabic.

This concludes work on:
Bug: 15840116

Change-Id: Iade313fc70030a67c68d424d8cb0cac245b883d1
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 80a6573..a18ab76 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -494,6 +494,11 @@
             <enum name="sinhala" value="10" />
             <enum name="thai" value="11" />
             <enum name="telugu" value="12" />
+            <enum name="devanagari" value="13" />
+            <enum name="bengali" value="14" />
+            <enum name="tamil" value="15" />
+            <enum name="kannada" value="16" />
+            <enum name="malayalam" value="17" />
         </attr>
     </declare-styleable>
 
diff --git a/java/res/xml/keyboard_layout_set_bengali.xml b/java/res/xml/keyboard_layout_set_bengali.xml
index 6e40e6d..de48a0c 100644
--- a/java/res/xml/keyboard_layout_set_bengali.xml
+++ b/java/res/xml/keyboard_layout_set_bengali.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="bengali" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_bengali"
diff --git a/java/res/xml/keyboard_layout_set_hindi.xml b/java/res/xml/keyboard_layout_set_hindi.xml
index e850c7e..ee41b2a 100644
--- a/java/res/xml/keyboard_layout_set_hindi.xml
+++ b/java/res/xml/keyboard_layout_set_hindi.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="devanagari" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_hindi"
diff --git a/java/res/xml/keyboard_layout_set_hindi_compact.xml b/java/res/xml/keyboard_layout_set_hindi_compact.xml
index 77d02fb..147b299 100644
--- a/java/res/xml/keyboard_layout_set_hindi_compact.xml
+++ b/java/res/xml/keyboard_layout_set_hindi_compact.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="devanagari" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_hindi_compact"
diff --git a/java/res/xml/keyboard_layout_set_kannada.xml b/java/res/xml/keyboard_layout_set_kannada.xml
index 8dcf996..14323e7 100644
--- a/java/res/xml/keyboard_layout_set_kannada.xml
+++ b/java/res/xml/keyboard_layout_set_kannada.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="kannada" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_kannada"
diff --git a/java/res/xml/keyboard_layout_set_malayalam.xml b/java/res/xml/keyboard_layout_set_malayalam.xml
index 14c76ba..f6086f6 100644
--- a/java/res/xml/keyboard_layout_set_malayalam.xml
+++ b/java/res/xml/keyboard_layout_set_malayalam.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="malayalam" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_malayalam"
diff --git a/java/res/xml/keyboard_layout_set_marathi.xml b/java/res/xml/keyboard_layout_set_marathi.xml
index e5c68e7..6aea175 100644
--- a/java/res/xml/keyboard_layout_set_marathi.xml
+++ b/java/res/xml/keyboard_layout_set_marathi.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="devanagari" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_marathi"
diff --git a/java/res/xml/keyboard_layout_set_nepali_romanized.xml b/java/res/xml/keyboard_layout_set_nepali_romanized.xml
index fbbc6a5..5bad835 100644
--- a/java/res/xml/keyboard_layout_set_nepali_romanized.xml
+++ b/java/res/xml/keyboard_layout_set_nepali_romanized.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="devanagari" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_nepali_romanized"
diff --git a/java/res/xml/keyboard_layout_set_nepali_traditional.xml b/java/res/xml/keyboard_layout_set_nepali_traditional.xml
index 4a3b601..6f11dee 100644
--- a/java/res/xml/keyboard_layout_set_nepali_traditional.xml
+++ b/java/res/xml/keyboard_layout_set_nepali_traditional.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="devanagari" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_nepali_traditional"
diff --git a/java/res/xml/keyboard_layout_set_tamil.xml b/java/res/xml/keyboard_layout_set_tamil.xml
index 5c04915..27f4a32 100644
--- a/java/res/xml/keyboard_layout_set_tamil.xml
+++ b/java/res/xml/keyboard_layout_set_tamil.xml
@@ -20,6 +20,8 @@
 
 <KeyboardLayoutSet
     xmlns:latin="http://schemas.android.com/apk/res/com.android.inputmethod.latin">
+    <Feature
+        latin:supportedScript="tamil" />
     <Element
         latin:elementName="alphabet"
         latin:elementKeyboard="@xml/kbd_tamil"