Use Android API for GetDisplayNameForLocale().

base/android/java/org/chromium/base/LocaleUtils.java

Index: base/android/java/org/chromium/base/LocaleUtils.java
diff --git a/base/android/java/org/chromium/base/LocaleUtils.java b/base/android/java/org/chromium/base/LocaleUtils.java
new file mode 100644
index 0000000000000000000000000000000000000000..60fc9557e1288f26ff042d6b3d32fd07b1f7e9a1
--- /dev/null
+++ b/base/android/java/org/chromium/base/LocaleUtils.java
@@ -0,0 +1,24 @@
+// Copyright (c) 2012 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.base;
+
+import java.util.Locale;
+
+/**
+ * This class provides the locale related methods for the native library.
+ */
+class LocaleUtils {
+
+    private LocaleUtils() { /* cannot be instantiated */ }
+
+    /**
+     * @return the default locale.
+     */
+    @CalledByNative
+    public static String getDefaultLocale() {
+        Locale locale = Locale.getDefault();
+        return locale.getLanguage() + "-" + locale.getCountry();

[Mark Mentovai, 2012/04/25 20:00:20]

Is this always right? Will there never be a case where we intend something like
“en” without a country? Languages like “ru”? What about cases like “es-419”,
does this handle those? Should it?

[Xianzhu, 2012/04/25 22:31:46]

I think it should handle locales without country. "es-419" should be handled
automatically if Java Locale returns language "es" and country "419".

[Mark Mentovai, 2012/04/25 22:38:51]

Xianzhu wrote:
How ’bout things like “ru”? Chrome calls the locale for that “ru”, no dashes or
countries or anything. Will returning something else here (I’m not sure what
it’ll return, actually) cause a problem?

[Xianzhu, 2012/04/25 22:53:15]

Sorry I forgot to mention I would make the change to handle "ru". The code Patch
Set 1 will return "ru" in the case.

+    }
+}