Small optimization to eliminate a >0 check in RichInputConnection.

Change-Id: Ibdf97726008c1f94c970461196ba445ce328a8cb
diff --git a/java/src/com/android/inputmethod/latin/RichInputConnection.java b/java/src/com/android/inputmethod/latin/RichInputConnection.java
index 064db6a..f8f2723 100644
--- a/java/src/com/android/inputmethod/latin/RichInputConnection.java
+++ b/java/src/com/android/inputmethod/latin/RichInputConnection.java
@@ -126,7 +126,7 @@
     /**
      * The timestamp of the last slow InputConnection operation
      */
-    private long mLastSlowInputConnectionTime = 0;
+    private long mLastSlowInputConnectionTime = -SLOW_INPUTCONNECTION_PERSIST_MS;
 
     public RichInputConnection(final InputMethodService parent) {
         mParent = parent;
@@ -143,13 +143,12 @@
      * calling InputConnection methods that trigger an IPC round-trip (e.g., getTextAfterCursor).
      */
     public boolean hasSlowInputConnection() {
-        return mLastSlowInputConnectionTime > 0 &&
-                (SystemClock.uptimeMillis() - mLastSlowInputConnectionTime)
+        return (SystemClock.uptimeMillis() - mLastSlowInputConnectionTime)
                         <= SLOW_INPUTCONNECTION_PERSIST_MS;
     }
 
     public void onStartInput() {
-        mLastSlowInputConnectionTime = 0;
+        mLastSlowInputConnectionTime = -SLOW_INPUTCONNECTION_PERSIST_MS;
     }
 
     private void checkConsistencyForDebug() {