Add a cache for recently viewed webpages.

chrome/android/java_sources.gni

 # Copyright 2016 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.
 
 chrome_java_sources = [
   "java/src/com/google/android/apps/chrome/appwidget/bookmarks/BookmarkThumbnailWidgetProvider.java",
   "java/src/org/chromium/chrome/browser/ActivityTabTaskDescriptionHelper.java",
   "java/src/org/chromium/chrome/browser/ActivityTaskDescriptionIconGenerator.java",
   "java/src/org/chromium/chrome/browser/AfterStartupTaskUtils.java",
   "java/src/org/chromium/chrome/browser/AppIndexingUtil.java",
@@ skipping 1590 matching lines @@
   "javatests/src/org/chromium/chrome/browser/widget/RoundedIconGeneratorTest.java",
   "javatests/src/org/chromium/chrome/browser/widget/ToolbarProgressBarTest.java",
   "javatests/src/org/chromium/chrome/browser/widget/bottomsheet/BottomSheetObserverTest.java",
   "javatests/src/org/chromium/chrome/browser/widget/findinpage/FindTest.java",
   "javatests/src/org/chromium/chrome/test/ParametersOnMultiTest.java",
   "javatests/src/org/chromium/chrome/test/util/ChromeSigninUtilsTest.java",
   "javatests/src/org/chromium/chrome/test/util/parameters/SigninParametersTest.java",
 ]
 
 chrome_junit_test_java_sources = [
+  "junit/src/org/chromium/chrome/browser/AppIndexingUtilTest.java",
   "junit/src/org/chromium/chrome/browser/ChromeBackupAgentTest.java",
   "junit/src/org/chromium/chrome/browser/ChromeBackgroundServiceWaiterTest.java",
   "junit/src/org/chromium/chrome/browser/DelayedScreenLockIntentHandlerTest.java",
   "junit/src/org/chromium/chrome/browser/DisableHistogramsRule.java",
   "junit/src/org/chromium/chrome/browser/Features.java",
   "junit/src/org/chromium/chrome/browser/ShortcutHelperTest.java",
   "junit/src/org/chromium/chrome/browser/SSLClientCertificateRequestTest.java",
   "junit/src/org/chromium/chrome/browser/compositor/overlays/strip/StripLayoutHelperTest.java",
   "junit/src/org/chromium/chrome/browser/compositor/CompositorSurfaceManagerTest.java",
   "junit/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchSelectionControllerTest.java",
@@ skipping 79 matching lines @@
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/SyncTestBase.java",
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/TypedUrlsTest.java",
   "sync_shell/javatests/src/org/chromium/chrome/browser/sync/ui/PassphraseTypeDialogFragmentTest.java",
 ]
 
 # Only used for testing, should not be shipped to end users.
 if (!is_official_build) {
   chrome_java_sources += [ "java/src/org/chromium/chrome/browser/offlinepages/evaluation/OfflinePageEvaluationBridge.java" ]
   chrome_test_java_sources += [ "javatests/src/org/chromium/chrome/browser/offlinepages/OfflinePageSavePageLaterEvaluationTest.java" ]
 }