Reland #2 of Fix monochrome not booting issue

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

Index: ui/android/java/src/org/chromium/ui/base/ResourceBundle.java
diff --git a/ui/android/java/src/org/chromium/ui/base/ResourceBundle.java b/ui/android/java/src/org/chromium/ui/base/ResourceBundle.java
index adbf8afac277330364f11daeafffa525c5224d7e..c1965b4b77c707e4b45b922e4827567b404f5a9a 100644
--- a/ui/android/java/src/org/chromium/ui/base/ResourceBundle.java
+++ b/ui/android/java/src/org/chromium/ui/base/ResourceBundle.java
@@ -4,18 +4,11 @@
 
 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.ThreadUtils;
+import org.chromium.base.BuildConfig;
 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.Locale;
+import java.util.Arrays;
 
 /**
  * This class provides the resource bundle related methods for the native
@@ -23,67 +16,10 @@ import java.util.Locale;
  */
 @JNINamespace("ui")
 public class ResourceBundle {
-    private static ResourceExtractor.ResourceEntry[] sActiveLocaleResources;
-
-    /**
-     * Applies the reverse mapping done by locale_pak_resources.py.
-     */
-    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);
-        }
-        return srcFileName;
-    }
-
-    /**
-     * 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() {
-        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;
-            }
+        if (Arrays.binarySearch(BuildConfig.UNCOMPRESSED_LOCALES, locale) >= 0) {
+            return "assets/" + locale + ".pak";
         }
         return null;
     }