[Android O] Initialize channels on first launch/upgrade

chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java b/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
index f021a77b8f9b286e94ed03a33fb7f7fdab60e2e9..0ec3406b75ce1c8850f42ad7894eb8019a422b14 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/DeferredStartupHandler.java
@@ -32,6 +32,7 @@ import org.chromium.chrome.browser.locale.LocaleManager;
 import org.chromium.chrome.browser.media.MediaCaptureNotificationService;
 import org.chromium.chrome.browser.metrics.LaunchMetrics;
 import org.chromium.chrome.browser.metrics.UmaUtils;
+import org.chromium.chrome.browser.notifications.ChannelsUpdater;
 import org.chromium.chrome.browser.ntp.NewTabPage;
 import org.chromium.chrome.browser.offlinepages.OfflinePageUtils;
 import org.chromium.chrome.browser.partnerbookmarks.PartnerBookmarksShim;
@@ -200,6 +201,10 @@ public class DeferredStartupHandler {
                 ShareHelper.clearSharedImages();
 
                 OfflinePageUtils.clearSharedOfflineFiles(mAppContext);
+
+                if (ChannelsUpdater.getInstance().shouldUpdateChannels()) {
+                    initChannelsAsync();
+                }
             }
         });
 
@@ -249,6 +254,18 @@ public class DeferredStartupHandler {
         ProcessInitializationHandler.getInstance().initializeDeferredStartupTasks();
     }
 
+    private void initChannelsAsync() {
+        new AsyncTask<Void, Void, Void>() {
+            @Override
+            protected Void doInBackground(Void... params) {
+                ChannelsUpdater.getInstance().updateChannels();
+                return null;
+            }
+
+        }
+                .executeOnExecutor(AsyncTask.SERIAL_EXECUTOR);
+    }
+
     private void initAsyncDiskTask() {
         new AsyncTask<Void, Void, Void>() {
             /**