Unified Bookmarks and Recent Tabs signin methods.

chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsManager.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsManager.java
index c7993199dee60dcd293b80ec3c30f7d6a134ab20..9ad2484a097eb1418a655019c867a4caf27a74c9 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/RecentTabsManager.java
@@ -9,7 +9,6 @@ import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.preference.PreferenceManager;
 
-import org.chromium.base.ObserverList;
 import org.chromium.base.ThreadUtils;
 import org.chromium.chrome.browser.UrlConstants;
 import org.chromium.chrome.browser.favicon.FaviconHelper;
@@ -20,14 +19,11 @@ import org.chromium.chrome.browser.metrics.StartupMetrics;
 import org.chromium.chrome.browser.ntp.ForeignSessionHelper.ForeignSession;
 import org.chromium.chrome.browser.ntp.ForeignSessionHelper.ForeignSessionCallback;
 import org.chromium.chrome.browser.ntp.ForeignSessionHelper.ForeignSessionTab;
-import org.chromium.chrome.browser.ntp.RecentTabsPromoView.SyncPromoModel;
 import org.chromium.chrome.browser.ntp.RecentlyClosedBridge.RecentlyClosedCallback;
 import org.chromium.chrome.browser.ntp.RecentlyClosedBridge.RecentlyClosedTab;
 import org.chromium.chrome.browser.profiles.Profile;
-import org.chromium.chrome.browser.signin.SigninAccessPoint;
 import org.chromium.chrome.browser.signin.SigninManager;
 import org.chromium.chrome.browser.signin.SigninManager.SignInStateObserver;
-import org.chromium.chrome.browser.sync.ProfileSyncService;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.sync.AndroidSyncSettings;
@@ -40,8 +36,7 @@ import java.util.List;
 /**
  * Provides the domain logic and data for RecentTabsPage and RecentTabsRowAdapter.
  */
-public class RecentTabsManager implements AndroidSyncSettingsObserver, SignInStateObserver,
-        SyncPromoModel {
+public class RecentTabsManager implements AndroidSyncSettingsObserver, SignInStateObserver {
 
     /**
      * Implement this to receive updates when the page contents change.
@@ -60,8 +55,6 @@ public class RecentTabsManager implements AndroidSyncSettingsObserver, SignInSta
     private final Profile mProfile;
     private final Tab mTab;
     private final Context mContext;
-    private final ObserverList<AndroidSyncSettingsObserver> mObservers =
-            new ObserverList<AndroidSyncSettingsObserver>();
 
     private FaviconHelper mFaviconHelper;
     private ForeignSessionHelper mForeignSessionHelper;
@@ -461,52 +454,11 @@ public class RecentTabsManager implements AndroidSyncSettingsObserver, SignInSta
                 if (mIsDestroyed) return;
                 updateForeignSessions();
                 postUpdate();
-                for (AndroidSyncSettingsObserver observer : mObservers) {
-                    observer.androidSyncSettingsChanged();
-                }
             }
         });
     }
 
-    // SyncPromoModel
-    @Override
-    public boolean isSyncEnabled() {
-        return AndroidSyncSettings.isSyncEnabled(mContext);
-    }
-
-    @Override
     public boolean isSignedIn() {
         return ChromeSigninController.get(mContext).isSignedIn();
     }
-
-    @Override
-    public void enableSync() {
-        ProfileSyncService syncService = ProfileSyncService.get();
-        if (syncService != null) {
-            syncService.requestStart();
-        }
-    }
-
-    @Override
-    public void registerForSyncUpdates(AndroidSyncSettingsObserver changeListener) {
-        mObservers.addObserver(changeListener);
-    }
-
-    @Override
-    public void unregisterForSyncUpdates(AndroidSyncSettingsObserver changeListener) {
-        mObservers.removeObserver(changeListener);
-    }
-
-    @Override
-    public ProfileDataCache getProfileDataCache() {
-        if (mProfileDataCache == null) {
-            mProfileDataCache = new ProfileDataCache(mContext, Profile.getLastUsedProfile());
-        }
-        return mProfileDataCache;
-    }
-
-    @Override
-    public int getAccessPoint() {
-        return SigninAccessPoint.RECENT_TABS;
-    }
 }