Use LocaleList in Android/Webview locale representation

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index 45a360b4f9da94ff9fe8607a1c29090fe6c44221..5b8fb14d74cf369c75543a238d2c92f13a927424 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -693,7 +693,11 @@ public class AwContents implements SmartClipProvider,
 
         @Override
         public void onConfigurationChanged(Configuration configuration) {
-            setLocale(LocaleUtils.toLanguageTag(configuration.locale));
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                setLocale(LocaleUtils.toLanguageTags(configuration.getLocales()));
+            } else {
+                setLocale(LocaleUtils.toLanguageTag(configuration.locale));
+            }
             mSettings.updateAcceptLanguages();
         }
     };
@@ -1002,6 +1006,7 @@ public class AwContents implements SmartClipProvider,
         return wrapper;
     }
 
+    // Deal with a string represents either single locale or a locale list

[Seigo Nonaka, 2016/11/08 09:31:11]

Then, lets change the argument name to "locales".

[Yirui Huang, 2016/11/08 10:39:31]

Done.

     @VisibleForTesting
     public static void setLocale(String locale) {
         if (!sCurrentLocale.equals(locale)) {