[Omaha] Make the whole pipeline run each time

chrome/android/java/src/org/chromium/chrome/browser/omaha/OmahaDelegateImpl.java

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.omaha;
+
+import android.app.Service;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+
+import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.base.ApplicationStatus;
+import org.chromium.chrome.browser.ChromeApplication;
+
+import java.util.UUID;
+
+/** Delegates calls out from the OmahaClient. */
+public class OmahaDelegateImpl extends OmahaDelegate {
+    private final ExponentialBackoffScheduler mScheduler;
+
+    OmahaDelegateImpl(Context context) {
+        super(context);
+        mScheduler = new ExponentialBackoffScheduler(OmahaBase.PREF_PACKAGE, context,
+                OmahaClient.MS_POST_BASE_DELAY, OmahaClient.MS_POST_MAX_DELAY);
+    }
+
+    @Override
+    boolean isInSystemImage() {
+        return (getContext().getApplicationInfo().flags & ApplicationInfo.FLAG_SYSTEM) != 0;
+    }
+
+    @Override
+    ExponentialBackoffScheduler getScheduler() {
+        return mScheduler;
+    }
+
+    @Override
+    String generateUUID() {
+        return UUID.randomUUID().toString();
+    }
+
+    @Override
+    boolean isChromeBeingUsed() {
+        boolean isChromeVisible = ApplicationStatus.hasVisibleActivities();
+        boolean isScreenOn = ApiCompatibilityUtils.isInteractive(getContext());
+        return isChromeVisible && isScreenOn;
+    }
+
+    @Override
+    void scheduleService(Service service, long nextTimestamp) {
+        if (service instanceof OmahaClient) {
+            getScheduler().createAlarm(OmahaClient.createOmahaIntent(getContext()), nextTimestamp);
+        } else {
+            // TODO(dfalcantara): Do something here with a JobService.
+        }
+    }
+
+    @Override
+    protected RequestGenerator createRequestGenerator(Context context) {
+        return ((ChromeApplication) context.getApplicationContext()).createOmahaRequestGenerator();
+    }
+}