Revert of [Omaha] Make the whole pipeline run each time (patchset #4 id:60001 of https://codereview…

chrome/android/java/src/org/chromium/chrome/browser/omaha/OmahaDelegate.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 org.chromium.chrome.browser.omaha.OmahaClient.PostResult;
-
-/** Delegates calls out from the OmahaClient. */
-public abstract class OmahaDelegate {
-    protected final Context mContext;
-    private RequestGenerator mRequestGenerator;
-
-    OmahaDelegate(Context context) {
-        mContext = context;
-    }
-
-    /** @return Context that is used to interact with the system. */
-    Context getContext() {
-        return mContext;
-    }
-
-    /** @return Whether Chrome is installed as part of the system image. */
-    abstract boolean isInSystemImage();
-
-    /** @return The scheduler used to trigger jobs. */
-    abstract ExponentialBackoffScheduler getScheduler();
-
-    /** @return The {@link RequestGenerator} used to create Omaha XML. */
-    final RequestGenerator getRequestGenerator() {
-        if (mRequestGenerator == null) mRequestGenerator = createRequestGenerator(getContext());
-        return mRequestGenerator;
-    }
-
-    /** @return A UUID that can be used to identify particular requests. */
-    abstract String generateUUID();
-
-    /** Determine whether or not Chrome is currently being used actively. */
-    abstract boolean isChromeBeingUsed();
-
-    /**
-     * Schedules the {@link Service} to run again at the given time.
-     * @param service         Service that is doing the scheduling.
-     * @param nextTimestampMs When the service should be run again.
-     */
-    abstract void scheduleService(Service service, long nextTimestampMs);
-
-    /** Creates a {@link RequestGenerator}. */
-    abstract RequestGenerator createRequestGenerator(Context context);
-
-    /**
-     * Called when {@link OmahaClient#registerNewRequest} finishes.
-     * @param timestampRequestMs When the next active user request should be generated.
-     * @param timestampPostMs    Earliest time the next POST should be allowed.
-     */
-    void onRegisterNewRequestDone(long timestampRequestMs, long timestampPostMs) {}
-
-    /**
-     * Called when {@link OmahaClient#handlePostRequest} finishes.
-     * @param result              See {@link PostResult}.
-     * @param installEventWasSent Whether or not an install event was sent.
-     */
-    void onHandlePostRequestDone(@PostResult int result, boolean installEventWasSent) {}
-
-    /**
-     * Called when {@link OmahaClient#generateAndPostRequest} finishes.
-     * @param succeeded Whether or not the post was successfully received by the server.
-     */
-    void onGenerateAndPostRequestDone(boolean succeeded) {}
-
-    /**
-     * Called when {@link OmahaClient#saveState} finishes.
-     * @param timestampRequestMs When the next active user request should be generated.
-     * @param timestampPostMs    Earliest time the next POST should be allowed.
-     */
-    void onSaveStateDone(long timestampRequestMs, long timestampPostMs) {}
-}