[Sync] Initial support for encrypting any datatype (no UI hookup yet).

chrome/test/live_sync/live_sessions_sync_test.h

Index: chrome/test/live_sync/live_sessions_sync_test.h
diff --git a/chrome/test/live_sync/live_sessions_sync_test.h b/chrome/test/live_sync/live_sessions_sync_test.h
index 09939bf58fd92fb74242515a488e585bf3017daa..3a9e586ae95a90d122edae2dc0972e43d7b52d7e 100644
--- a/chrome/test/live_sync/live_sessions_sync_test.h
+++ b/chrome/test/live_sync/live_sessions_sync_test.h
@@ -190,6 +190,16 @@ class LiveSessionsSyncTest : public LiveSyncTest {
     return true;
   }
 
+  // Encrypt sessions datatype.
+  bool EnableEncryption(int index) {
+    return GetClient(index)->EnableEncryptionForType(syncable::SESSIONS);
+  }
+
+  // Check if Sessions are encrypted.
+  bool IsEncrypted(int index) {
+    return GetClient(index)->IsTypeEncrypted(syncable::SESSIONS);
+  }
+
   // Open a single tab and return the TabContents. TabContents must be checked
   // to ensure the tab opened successsfully.
   TabContents* OpenTab(int index, GURL url) WARN_UNUSED_RESULT {
@@ -244,7 +254,7 @@ class LiveSessionsSyncTest : public LiveSyncTest {
     std::vector<const ForeignSession*> sessions;
     if (!GetProfile(index)->GetProfileSyncService()->
         GetSessionModelAssociator()->GetAllForeignSessions(&sessions))
-        return 0;
+      return 0;
     return sessions.size();
   }