Fix Samsung's Lollipop devices DatePicker crash

System default string resouce R.string.item_is_selected with expected
pattern %s is changed to %d on Samsung's 5.x  devices
(S4, S5, Note 3, Core Prime etc.). This small change causes
String.format() to throw exception when SimpleMonthView's content description
is requested (for example Accessibility/TalkBack is ON).
In case of Chromium this view is used only at DatePickerDialog.
The solution is to suppress this exception on 5.x devices and give
fixed string to view.

This fix is based on: http://stackoverflow.com/q/28618405
R=mlamouri@chromium.org, leandrogracia@chromium.org, tkent@chromium.org
BUG= crbug.com/710950

Review-Url: https://codereview.chromium.org/2790423002
Cr-Commit-Position: refs/heads/master@{#467945}

content/public/android/java/src/org/chromium/content/browser/picker/DateTimePickerDialog.java

@@ -6,8 +6,16 @@ package org.chromium.content.browser.picker;
 
 import android.app.AlertDialog;
 import android.content.Context;
+import android.content.ContextWrapper;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
+import android.content.res.AssetManager;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.os.Build;
+import android.os.LocaleList;
+import android.support.annotation.NonNull;
+import android.util.DisplayMetrics;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.DatePicker;
@@ -20,7 +28,12 @@ import org.chromium.content.R;
 
 import java.util.Calendar;
 import java.util.GregorianCalendar;
+import java.util.IllegalFormatConversionException;
+import java.util.Locale;
 import java.util.TimeZone;
+import java.util.regex.Pattern;
+
+import javax.annotation.CheckForNull;
 
 /**
  * A dialog that allows the user to choose a date and time. Shown for HTML form input elements
@@ -82,8 +95,9 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
         setIcon(0);
         setTitle(context.getText(R.string.date_time_picker_dialog_title));
 
+        Context dialogContext = getDialogContext(context);
         LayoutInflater inflater =
-                (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+                (LayoutInflater) dialogContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         View view = inflater.inflate(R.layout.date_time_picker_dialog, null);
         setView(view);
         mDatePicker = (DatePicker) view.findViewById(R.id.date_picker);
@@ -181,4 +195,72 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
     private static int getMinute(TimePicker picker) {
         return picker.getCurrentMinute();
     }
+
+    /**
+     * Wraps context with {@link WorkaroundContextForSamsungLDateTimeBug} instance if needed.
+     */
+    private static Context getDialogContext(Context context) {
+        if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP
+                || Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP_MR1) {
+            return new WorkaroundContextForSamsungLDateTimeBug(context);
+        }
+
+        return context;
+    }
+
+    /**
+     * Workaround for Samsung Lollipop devices that may crash due to wrong string resource supplied
+     * to {@link android.widget.SimpleMonthView}'s content description.
+     */
+    private static class WorkaroundContextForSamsungLDateTimeBug extends ContextWrapper {
+        @CheckForNull
+        private Resources mWrappedResources;
+
+        private WorkaroundContextForSamsungLDateTimeBug(Context context) {
+            super(context);
+        }
+
+        @Override
+        public Resources getResources() {
+            if (mWrappedResources == null) {
+                Resources r = super.getResources();
+                mWrappedResources = new WrappedResources(
+                        r.getAssets(), r.getDisplayMetrics(), r.getConfiguration()) {};
+            }
+            return mWrappedResources;
+        }
+
+        private class WrappedResources extends Resources {
+            WrappedResources(AssetManager assets, DisplayMetrics displayMetrics,
+                    Configuration configuration) {
+                super(assets, displayMetrics, configuration);
+            }
+
+            @NonNull
+            @Override
+            public String getString(int id, Object... formatArgs) throws NotFoundException {
+                try {
+                    return super.getString(id, formatArgs);
+                } catch (IllegalFormatConversionException conversationException) {
+                    String template = super.getString(id);
+                    char conversion = conversationException.getConversion();
+                    // Trying to replace either all digit patterns (%d) or first one (%1$d).
+                    template = template.replaceAll(Pattern.quote("%" + conversion), "%s")
+                                       .replaceAll(Pattern.quote("%1$" + conversion), "%s");
+
+                    return String.format(getLocale(), template, formatArgs);
+                }
+            }
+
+            private Locale getLocale() {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                    LocaleList locales = getConfiguration().getLocales();
+                    if (locales.size() > 0) {
+                        return locales.get(0);
+                    }
+                }
+                return getConfiguration().locale;
+            }
+        }
+    }
 }