Merge "Add trimToSize() to public API." into jb-mr1-dev

Author: jsharkey

api/current.txt

@@ -22791,6 +22791,7 @@ package android.util {
     method protected int sizeOf(K, V);
     method public final synchronized java.util.Map<K, V> snapshot();
     method public final synchronized java.lang.String toString();
+    method public void trimToSize(int);
   }
 
   public final class MalformedJsonException extends java.io.IOException {

core/java/android/util/LruCache.java

@@ -186,10 +186,13 @@ public final V put(K key, V value) {
     }
 
     /**
+     * Remove the eldest entries until the total of remaining entries is at or
+     * below the requested size.
+     *
      * @param maxSize the maximum size of the cache before returning. May be -1
-     *     to evict even 0-sized elements.
+     *            to evict even 0-sized elements.
      */
-    private void trimToSize(int maxSize) {
+    public void trimToSize(int maxSize) {
         while (true) {
             K key;
             V value;