Bug 734469 - Clients stage table missing during sync. r=rnewman

mobile/android/base/sync/repositories/android/AndroidBrowserHistoryDataAccessor.java

@@ -121,4 +121,7 @@ public class AndroidBrowserHistoryDataAccessor extends AndroidBrowserRepositoryD
     dataExtender.delete(guid);
   }
 
+  public void closeExtender() {
+    dataExtender.close();
+  }
 }

mobile/android/base/sync/repositories/android/AndroidBrowserHistoryRepositorySession.java

@@ -6,8 +6,10 @@ package org.mozilla.gecko.sync.repositories.android;
 
 import org.json.simple.JSONArray;
 import org.json.simple.JSONObject;
+import org.mozilla.gecko.sync.repositories.InactiveSessionException;
 import org.mozilla.gecko.sync.repositories.NullCursorException;
 import org.mozilla.gecko.sync.repositories.Repository;
+import org.mozilla.gecko.sync.repositories.delegates.RepositorySessionFinishDelegate;
 import org.mozilla.gecko.sync.repositories.domain.HistoryRecord;
 import org.mozilla.gecko.sync.repositories.domain.Record;
 
@@ -96,4 +98,16 @@ public class AndroidBrowserHistoryRepositorySession extends AndroidBrowserReposi
   protected Record prepareRecord(Record record) {
     return record;
   }
+  
+  @Override
+  public void abort() {
+    ((AndroidBrowserHistoryDataAccessor) dbHelper).closeExtender();
+    super.abort();
+  }
+
+  @Override
+  public void finish(final RepositorySessionFinishDelegate delegate) throws InactiveSessionException {
+    ((AndroidBrowserHistoryDataAccessor) dbHelper).closeExtender();
+    super.finish(delegate);
+  }
 }

mobile/android/base/sync/repositories/android/AndroidBrowserRepositorySession.java

@@ -649,4 +649,9 @@ public abstract class AndroidBrowserRepositorySession extends StoreTrackingRepos
       delegate.onWipeSucceeded();
     }
   }
+
+  // For testing purposes.
+  public AndroidBrowserRepositoryDataAccessor getDBHelper() {
+    return dbHelper;
+  }
 }

mobile/android/base/sync/repositories/android/CachedSQLiteOpenHelper.java

@@ -18,8 +18,8 @@ public abstract class CachedSQLiteOpenHelper extends SQLiteOpenHelper {
 
   // Cache these so we don't have to track them across cursors. Call `close`
   // when you're done.
-  private static SQLiteDatabase readableDatabase;
+  private SQLiteDatabase readableDatabase;
-  private static SQLiteDatabase writableDatabase;
+  private SQLiteDatabase writableDatabase;
 
   synchronized protected SQLiteDatabase getCachedReadableDatabase() {
     if (readableDatabase == null) {
@@ -52,4 +52,10 @@ public abstract class CachedSQLiteOpenHelper extends SQLiteOpenHelper {
     }
     super.close();
   }
+
+  // Used for testing.
+  public boolean isClosed() {
+    return readableDatabase == null &&
+           writableDatabase == null;
+  }
 }