[Android] Show document mode opt-out InfoBar on selected devices.

chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMigrationHelper.java

Index: chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMigrationHelper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMigrationHelper.java b/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMigrationHelper.java
index db0b9ce59501e3e9c102f21b01d4a8f8094fbd03..2b385527e6dd9a9321061310384afef5751acc89 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMigrationHelper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/document/DocumentMigrationHelper.java
@@ -39,6 +39,7 @@ import org.chromium.chrome.browser.favicon.FaviconHelper;
 import org.chromium.chrome.browser.favicon.FaviconHelper.FaviconImageCallback;
 import org.chromium.chrome.browser.ntp.NativePageFactory;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
+import org.chromium.chrome.browser.preferences.DocumentModeManager;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tab.TabIdManager;
@@ -506,16 +507,19 @@ public class DocumentMigrationHelper {
         tabModel.addEntryForMigration(entry);
     }
 
-
     /**
      * Migrates tabs with state to and from document mode.
      * @param toDocumentMode Whether the user is opting out. If true the migration is from Document
      *               to Classic mode.
-     * @param activity The activity to use for launching intent if needed.
+     * @param activity The activity to use for {@link DocumentModeManager} state update and
+     *                 launching intent if needed.
      * @param terminate Whether the application process should be terminated after the migration.
      */
     public static void migrateTabs(boolean toDocumentMode, final Activity activity,
             boolean terminate) {
+        DocumentModeManager documentModeManager = DocumentModeManager.getInstance(activity);
+        documentModeManager.setOptOutCleanUpPending(true);
+
         // Allowing StrictMode violations as above. See http://crbug.com/493157 for context.
         StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskReads();
         StrictMode.allowThreadDiskWrites();
@@ -523,8 +527,11 @@ public class DocumentMigrationHelper {
             int terminateMode =
                     terminate ? FINALIZE_MODE_RESTART_APP : FINALIZE_MODE_FINISH_ACTIVITY;
             if (toDocumentMode) {
+                documentModeManager.setOptedOutState(DocumentModeManager.OPT_OUT_PROMO_DISMISSED);
                 migrateTabsFromClassicToDocument(activity, terminateMode);
             } else {
+                documentModeManager.setOptedOutState(
+                        DocumentModeManager.OPTED_OUT_OF_DOCUMENT_MODE);
                 migrateTabsFromDocumentToClassic(activity, terminateMode);
             }
         } finally {