Revert "Refactor KeyboardTheme"

This reverts commit 19688b584bb903192559196a0e3836bc4c957696.

Build breakage.

Change-Id: I95d4be1578824eaee5a2fb08ec277250727ac668
diff --git a/java/res/values/config-common.xml b/java/res/values/config-common.xml
index 1962c0d..3fe4b94 100644
--- a/java/res/values/config-common.xml
+++ b/java/res/values/config-common.xml
@@ -24,6 +24,9 @@
          at input history to suggest a hopefully helpful suggestions for the next word? -->
     <bool name="config_default_next_word_prediction">true</bool>
 
+    <!-- This configuration must be aligned with {@link KeyboardTheme#DEFAULT_THEME_ID}. -->
+    <string name="config_default_keyboard_theme_id" translatable="false">2</string>
+
     <integer name="config_delay_update_shift_state">100</integer>
     <integer name="config_double_space_period_timeout">1100</integer>
 
diff --git a/java/res/values/keyboard-themes.xml b/java/res/values/keyboard-themes.xml
deleted file mode 100644
index 0325f5b..0000000
--- a/java/res/values/keyboard-themes.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/*
-**
-** Copyright 2014, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
--->
-<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <!-- For keyboard color scheme option dialog. -->
-    <string-array name="keyboard_theme_names" translatable="false">
-        <item>@string/keyboard_color_scheme_white</item>
-        <item>@string/keyboard_color_scheme_blue</item>
-        <!-- TODO: Make this item as translatable string resource. -->
-        <item>Quantum</item>
-    </string-array>
-    <!-- An element must be a keyboard theme id of {@link KeyboardTheme#THEME_ID_*}. -->
-    <string-array name="keyboard_theme_ids" translatable="false">
-        <item>2</item>
-        <item>0</item>
-        <item>3</item>
-    </string-array>
-</resources>
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index 61ebb69..7d86dbd 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -158,11 +158,12 @@
                 android:persistent="true"
                 android:defaultValue="false" />
             <ListPreference
-                android:key="pref_keyboard_theme"
+                android:key="pref_keyboard_layout_20110916"
                 android:title="@string/keyboard_color_scheme"
                 android:persistent="true"
                 android:entryValues="@array/keyboard_theme_ids"
-                android:entries="@array/keyboard_theme_names" />
+                android:entries="@array/keyboard_theme_names"
+                android:defaultValue="@string/config_default_keyboard_theme_id" />
             <PreferenceScreen
                 android:fragment="com.android.inputmethod.latin.settings.AdditionalSubtypeSettings"
                 android:key="custom_input_styles"