Revert of Implement GetDisplayed on android M+

chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java
index d1c4d1b797a77f18d26b77d3e110ae049ad1ebc8..26a96f9942d9e99bed462404e521b9e30b7f6685 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.java
@@ -15,7 +15,6 @@
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
-import android.service.notification.StatusBarNotification;
 import android.text.Spannable;
 import android.text.SpannableStringBuilder;
 import android.text.TextUtils;
@@ -44,8 +43,6 @@
 
 import java.net.URI;
 import java.net.URISyntaxException;
-import java.util.ArrayList;
-import java.util.List;
 
 import javax.annotation.Nullable;
 
@@ -575,15 +572,6 @@
                 makeDefaults(vibrationPattern.length, silent, vibrateEnabled));
         notificationBuilder.setVibrate(makeVibrationPattern(vibrationPattern));
 
-        // The extras bundle is available from API 20 but it's currenlty only used to retrieve
-        // notifications which is only available from 23 (Marshmallow) onwards.
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            Bundle extras = new Bundle();
-            extras.putString(NotificationConstants.EXTRA_NOTIFICATION_ID, notificationId);
-            extras.putString(NotificationConstants.EXTRA_NOTIFICATION_INFO_PROFILE_ID, profileId);
-            notificationBuilder.setExtras(extras);
-        }
-
         String platformTag = makePlatformTag(notificationId, origin, tag);
         if (webApkPackage.isEmpty()) {
             mNotificationManager.notify(platformTag, PLATFORM_ID, notificationBuilder.build());
@@ -685,35 +673,6 @@
         } else {
             WebApkNotificationClient.cancelNotification(webApkPackage, platformTag, PLATFORM_ID);
         }
-    }
-
-    /**
-     * Returns the notification ids on disply for a given |profileId|.
-     *
-     * @param profileId of the profile to retrieve notifications for.
-     */
-    @CalledByNative
-    private String[] getNotificationsForProfile(String profileId) {
-        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
-            return null;
-        }
-
-        StatusBarNotification[] displayedNotifications =
-                mNotificationManager.getActiveNotifications();
-        List<String> notifications = new ArrayList<String>();
-        for (StatusBarNotification notification : displayedNotifications) {
-            Bundle extras = notification.getNotification().extras;
-            String notificationId = extras.getString(NotificationConstants.EXTRA_NOTIFICATION_ID);
-            String notificationProfileId =
-                    extras.getString(NotificationConstants.EXTRA_NOTIFICATION_INFO_PROFILE_ID);
-            if (notificationId != null && profileId.equals(notificationProfileId)) {
-                notifications.add(notificationId);
-            }
-        }
-        if (notifications.size() == 0) return null;
-
-        String[] result = new String[notifications.size()];
-        return notifications.toArray(result);
     }
 
     /**