[Feed] When rescheduling, just set period to 1 day instead of going to

native.

Bug: 901331
Change-Id: I65b3d748cb96669fa78a712552f82a44873debf3
Reviewed-on: https://chromium-review.googlesource.com/c/1315929
Commit-Queue: Sky Malice <skym@chromium.org>
Reviewed-by: Filip Gorski <fgorski@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606873}

chrome/android/feed/core/java/src/org/chromium/chrome/browser/feed/FeedRefreshTask.java

@@ -15,6 +15,8 @@ import org.chromium.components.background_task_scheduler.TaskIds;
 import org.chromium.components.background_task_scheduler.TaskInfo;
 import org.chromium.components.background_task_scheduler.TaskParameters;
 
+import java.util.concurrent.TimeUnit;
+
 /**
  * A task implementation that loads native and then tries to refresh the Feed's articles. Failures
  * or interruptions are not retried or rescheduled.
@@ -89,11 +91,10 @@ public class FeedRefreshTask extends NativeBackgroundTask {
 
     @Override
     public void reschedule(Context context) {
-        ThreadUtils.runOnUiThread(() -> {
-            FeedScheduler scheduler = FeedProcessScopeFactory.getFeedScheduler();
-            if (scheduler != null) {
-                scheduler.onTaskReschedule();
-            }
-        });
+        // The user may be trying to do something other than use Chrome right now, so we want to be
+        // as light weight as possible. Instead of going to native to reschedule with a more
+        // informed threshold, just schedule for 1 day from now. The next time a successful fetch
+        // occurs, this value will be set to a value tailored to current usage patterns.
+        ThreadUtils.runOnUiThread(() -> scheduleWakeUp(TimeUnit.DAYS.toMillis(1)));
     }
 }

chrome/android/feed/core/java/src/org/chromium/chrome/browser/feed/FeedScheduler.java

@@ -20,9 +20,6 @@ public interface FeedScheduler extends SchedulerApi {
     /** To be called when a background scheduling task wakes up the browser. */
     void onFixedTimer(Runnable onCompletion);
 
-    /** To be called when a background scheduling task needs to be rescheduled. */
-    void onTaskReschedule();
-
     /** To be called when an article is consumed, influencing future scheduling. */
     void onSuggestionConsumed();
 }

chrome/android/feed/core/java/src/org/chromium/chrome/browser/feed/FeedSchedulerBridge.java

@@ -116,12 +116,6 @@ public class FeedSchedulerBridge implements FeedScheduler {
         nativeOnFixedTimer(mNativeBridge, (Void ignored) -> onCompletion.run());
     }
 
-    @Override
-    public void onTaskReschedule() {
-        assert mNativeBridge != 0;
-        nativeOnTaskReschedule(mNativeBridge);
-    }
-
     @Override
     public void onSuggestionConsumed() {
         assert mNativeBridge != 0;
@@ -158,6 +152,5 @@ public class FeedSchedulerBridge implements FeedScheduler {
     private native void nativeOnForegrounded(long nativeFeedSchedulerBridge);
     private native void nativeOnFixedTimer(
             long nativeFeedSchedulerBridge, Callback<Void> onCompletion);
-    private native void nativeOnTaskReschedule(long nativeFeedSchedulerBridge);
     private native void nativeOnSuggestionConsumed(long nativeFeedSchedulerBridge);
 }