[Rlog60] Log if a logUnit is uncommitted

Normally logUnits are committed to a log when the word that their data
corresponds to is complete.   However, if the user reverts a word, or goes
back to edit it, then the system may "uncommit" the logUnit, and append
additional editing steps to the end of it.  When this happens, we want to
make a note of it in the log, which is what this patch does.

Change-Id: If2bbb948469824c76facf5f06ed8a6da8ff9777c

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

@@ -730,6 +730,8 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         }
     }
 
+    private static final LogStatement LOGSTATEMENT_UNCOMMIT_CURRENT_LOGUNIT =
+            new LogStatement("UncommitCurrentLogUnit", false, false);
     public void uncommitCurrentLogUnit(final String expectedWord,
             final boolean dumpCurrentLogUnit) {
         // The user has deleted this word and returned to the previous.  Check that the word in the
@@ -768,6 +770,7 @@ public class ResearchLogger implements SharedPreferences.OnSharedPreferenceChang
         if (mFeedbackLogBuffer != null) {
             mFeedbackLogBuffer.unshiftIn();
         }
+        enqueueEvent(LOGSTATEMENT_UNCOMMIT_CURRENT_LOGUNIT);
         if (DEBUG) {
             Log.d(TAG, "uncommitCurrentLogUnit (dump=" + dumpCurrentLogUnit + ") back to "
                     + (mCurrentLogUnit.hasWord() ? ": '" + mCurrentLogUnit.getWord() + "'" : ""));