Move language pak files to assets.

ui/android/java/src/org/chromium/ui/base/ResourceBundle.java

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.ui.base;
 
-import android.content.Context;
-import android.content.res.Resources;
-import android.content.res.TypedArray;
-
-import org.chromium.base.ResourceExtractor;
+import org.chromium.base.LocaleUtils;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.base.annotations.SuppressFBWarnings;
 
 import java.io.File;
+import java.util.ArrayList;
 import java.util.Locale;
 
 /**
  * This class provides the resource bundle related methods for the native
  * library.
  */
 @JNINamespace("ui")
 public class ResourceBundle {
-    private static ResourceExtractor.ResourceEntry[] sActiveLocaleResources;
+    private static final String ASSET_DIR = "assets";
+    private static final String FALLBACK_LOCALE = "en-US";
+    private static String[] sActiveLocaleResources;
 
     /**
-     * Applies the reverse mapping done by locale_pak_resources.py.
+     * Initializes the list of locale packs for the active locale that are present within the apk.
+     *
+     * @param localePakFiles An array of pak filenames.
      */
-    private static String toChromeLocaleName(String srcFileName) {
-        srcFileName = srcFileName.replace(".lpak", ".pak");
-        String[] parts = srcFileName.split("_");
-        if (parts.length > 1) {
-            int dotIdx = parts[1].indexOf('.');
-            return parts[0] + "-" + parts[1].substring(0, dotIdx).toUpperCase(Locale.ENGLISH)
-                    + parts[1].substring(dotIdx);
+    @SuppressFBWarnings("LI_LAZY_INIT_UPDATE_STATIC")  // Not thread-safe.
+    public static void initializeLocalePaks(String[] localePakFiles) {
+        ThreadUtils.assertOnUiThread();
+        assert sActiveLocaleResources == null;
+        String language = LocaleUtils.getLanguage(Locale.getDefault());
+        ArrayList<String> activeLocalePakFiles = new ArrayList<String>(localePakFiles.length);
+        for (String pakFileName : localePakFiles) {
+            if (pakFileName.startsWith(language) || pakFileName.startsWith(FALLBACK_LOCALE)) {
+                activeLocalePakFiles.add(pakFileName);
+            }
         }
-        return srcFileName;
+        sActiveLocaleResources = activeLocalePakFiles.toArray(new String[0]);
     }
 
-    /**
-     * Initializes the list of locale packs for the active locale that are
-     * present within the apk.
-     *
-     * @param context Any context
-     * @param localePaksResId Resource ID locale_paks (generated by
-     *            locale_pak_resources.py)
-     */
-    @SuppressFBWarnings("LI_LAZY_INIT_UPDATE_STATIC")  // Not thread-safe.
-    public static void initializeLocalePaks(Context context, int localePaksResId) {
-        ThreadUtils.assertOnUiThread();
-        assert sActiveLocaleResources == null;
-        Resources resources = context.getResources();
-        TypedArray resIds = resources.obtainTypedArray(localePaksResId);
-        try {
-            int len = resIds.length();
-            sActiveLocaleResources = new ResourceExtractor.ResourceEntry[len];
-            for (int i = 0; i < len; ++i) {
-                int resId = resIds.getResourceId(i, 0);
-                String resPath = resources.getString(resId);
-                String srcBaseName = new File(resPath).getName();
-                String dstBaseName = toChromeLocaleName(srcBaseName);
-                sActiveLocaleResources[i] = new ResourceExtractor.ResourceEntry(resId, resPath,
-                        dstBaseName);
-            }
-        } finally {
-            resIds.recycle();
-        }
-    }
-
-    @SuppressFBWarnings("MS_EXPOSE_REP")  // Don't modify the array.
-    public static ResourceExtractor.ResourceEntry[] getActiveLocaleResources() {
+    @SuppressFBWarnings("MS_EXPOSE_REP") // Don't modify the list.
+    public static String[] getActiveLocaleResources() {
         return sActiveLocaleResources;
     }
 
     @CalledByNative
     private static String getLocalePakResourcePath(String locale) {
         if (sActiveLocaleResources == null) {
             return null;
         }
         String fileName = locale + ".pak";
-        for (ResourceExtractor.ResourceEntry entry : sActiveLocaleResources) {
-            if (fileName.equals(entry.extractedFileName)) {
-                return entry.pathWithinApk;
+        for (String resName : sActiveLocaleResources) {
+            if (fileName.equals(resName)) {
+                return new File(ASSET_DIR, resName).toString();
             }
         }
         return null;
     }
 }