[TestPrep11] Only use mHasWrittenData to control JsonWriter#endArray() call

Change-Id: If2107e38575b009a4c372194ecd827e27bdbb2b4

java/src/com/android/inputmethod/research/ResearchLog.java

@@ -107,16 +107,12 @@ public class ResearchLog {
                 try {
                     if (mHasWrittenData) {
                         mJsonWriter.endArray();
-                        mJsonWriter.flush();
-                        mJsonWriter.close();
-                        if (DEBUG) {
-                            Log.d(TAG, "wrote log to " + mFile);
-                        }
                         mHasWrittenData = false;
-                    } else {
-                        if (DEBUG) {
-                            Log.d(TAG, "close() called, but no data, not outputting");
-                        }
+                    }
+                    mJsonWriter.flush();
+                    mJsonWriter.close();
+                    if (DEBUG) {
+                        Log.d(TAG, "wrote log to " + mFile);
                     }
                 } catch (Exception e) {
                     Log.d(TAG, "error when closing ResearchLog:", e);