Revert "Revert of Destroy incognito profile from close all incognito notification. (patchset #1 id:…

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

 // Copyright 2015 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;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.ActivityManager.AppTask;
 import android.app.ActivityManager.RecentTaskInfo;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.graphics.Color;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.SystemClock;
 import android.support.annotation.IntDef;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;
 import android.util.Pair;
 import android.view.KeyEvent;
 import android.view.KeyboardShortcutGroup;
 import android.view.Menu;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.view.Window;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
 
 import org.chromium.base.ActivityState;
 import org.chromium.base.ApiCompatibilityUtils;
 import org.chromium.base.ApplicationStatus;
 import org.chromium.base.BuildInfo;
 import org.chromium.base.CommandLine;
+import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.MemoryPressureListener;
 import org.chromium.base.TraceEvent;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.library_loader.LibraryLoader;
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.IntentHandler.IntentHandlerDelegate;
 import org.chromium.chrome.browser.IntentHandler.TabOpenType;
@@ skipping 35 matching lines @@
 import org.chromium.chrome.browser.ntp.NewTabPageUma;
 import org.chromium.chrome.browser.ntp.snippets.SnippetsBridge;
 import org.chromium.chrome.browser.ntp.snippets.SnippetsConfig;
 import org.chromium.chrome.browser.omaha.OmahaClient;
 import org.chromium.chrome.browser.omnibox.AutocompleteController;
 import org.chromium.chrome.browser.partnercustomizations.HomepageManager;
 import org.chromium.chrome.browser.partnercustomizations.PartnerBrowserCustomizations;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
 import org.chromium.chrome.browser.preferences.PrefServiceBridge;
 import org.chromium.chrome.browser.preferences.datareduction.DataReductionPromoScreen;
+import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.signin.SigninPromoUtil;
 import org.chromium.chrome.browser.snackbar.undo.UndoBarController;
 import org.chromium.chrome.browser.suggestions.ContentSuggestionsActivity;
 import org.chromium.chrome.browser.tab.BrowserControlsVisibilityDelegate;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabDelegateFactory;
 import org.chromium.chrome.browser.tab.TabStateBrowserControlsVisibilityDelegate;
 import org.chromium.chrome.browser.tabmodel.ChromeTabCreator;
 import org.chromium.chrome.browser.tabmodel.TabModel;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
@@ skipping 18 matching lines @@
 import org.chromium.content_public.common.Referrer;
 import org.chromium.ui.base.DeviceFormFactor;
 import org.chromium.ui.base.PageTransition;
 import org.chromium.ui.base.WindowAndroid;
 import org.chromium.ui.widget.Toast;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.ref.WeakReference;
 import java.lang.reflect.Method;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 /**
  * This is the main activity for ChromeMobile when not running in document mode.  All the tabs
  * are accessible via a chrome specific tab switching UI.
  */
 public class ChromeTabbedActivity extends ChromeActivity implements OverviewModeObserver {
 
     private static final int FIRST_RUN_EXPERIENCE_RESULT = 101;
 
     @Retention(RetentionPolicy.SOURCE)
@@ skipping 265 matching lines @@
             // LocaleManager can only function after the native library is loaded.
             mLocaleManager = LocaleManager.getInstance();
             mLocaleManager.showSearchEnginePromoIfNeeded(this);
 
             super.finishNativeInitialization();
         } finally {
             TraceEvent.end("ChromeTabbedActivity.finishNativeInitialization");
         }
     }
 
+    /**
+     * Determine whether the incognito profile needs to be destroyed as part of startup.  This is
+     * only needed on L+ when it is possible to swipe away tasks from Android recents without
+     * killing the process.  When this occurs, the normal incognito profile shutdown does not
+     * happen, which can leave behind incognito cookies from an existing session.
+     */
+    @SuppressLint("NewApi")
+    private boolean shouldDestroyIncognitoProfile() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) return false;
+
+        Context context = ContextUtils.getApplicationContext();
+        ActivityManager manager =
+                (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
+        PackageManager pm = context.getPackageManager();
+
+        Set<Integer> tabbedModeTaskIds = new HashSet<>();
+        for (AppTask task : manager.getAppTasks()) {
+            RecentTaskInfo info = DocumentUtils.getTaskInfoFromTask(task);
+            if (info == null) continue;
+            String className = DocumentUtils.getTaskClassName(task, pm);
+
+            if (TextUtils.equals(className, ChromeTabbedActivity.class.getName())) {
+                tabbedModeTaskIds.add(info.id);
+            }
+        }
+
+        if (tabbedModeTaskIds.size() == 0) {
+            return Profile.getLastUsedProfile().hasOffTheRecordProfile();
+        }
+
+        List<WeakReference<Activity>> activities = ApplicationStatus.getRunningActivities();
+        for (int i = 0; i < activities.size(); i++) {
+            Activity activity = activities.get(i).get();
+            if (activity == null) continue;
+            tabbedModeTaskIds.remove(activity.getTaskId());
+        }
+
+        // If all tabbed mode tasks listed in Android recents are alive, check to see if
+        // any have incognito tabs exist.  If all are alive and no tabs exist, we should ensure that
+        // we delete the incognito profile if one is around still.
+        if (tabbedModeTaskIds.size() == 0) {
+            return TabWindowManager.getInstance().getIncognitoTabCount() == 0
+                    && Profile.getLastUsedProfile().hasOffTheRecordProfile();
+        }
+
+        // In this case, we have tabbed mode activities listed in recents that do not have an
+        // active running activity associated with them.  We can not accurately get an incognito
+        // tab count as we do not know if any incognito tabs are associated with the yet unrestored
+        // tabbed mode.  Thus we do not proactivitely destroy the incognito profile.
+        return false;
+    }
+
     @Override
     public void onResumeWithNative() {
         super.onResumeWithNative();
 
-        CookiesFetcher.restoreCookies(this);
+        if (shouldDestroyIncognitoProfile()) {
+            Profile.getLastUsedProfile().getOffTheRecordProfile().destroyWhenAppropriate();
+        } else {
+            CookiesFetcher.restoreCookies(this);
+        }
         StartupMetrics.getInstance().recordHistogram(false);
 
         if (FeatureUtilities.isTabModelMergingEnabled()) {
             boolean inMultiWindowMode = MultiWindowUtils.getInstance().isInMultiWindowMode(this);
             // Merge tabs if the activity is not in multi-window mode and mMergeTabsOnResume is true
             // or unset because the activity is just starting or was destroyed.
             if (!inMultiWindowMode && (mMergeTabsOnResume == null || mMergeTabsOnResume)) {
                 maybeMergeTabs();
             }
             mMergeTabsOnResume = false;
@@ skipping 1326 matching lines @@
 
         ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
         for (AppTask task : manager.getAppTasks()) {
             RecentTaskInfo info = DocumentUtils.getTaskInfoFromTask(task);
             if (info == null) continue;
             if (info.id == sMergedInstanceTaskId) return true;
         }
         return false;
     }
 }