Update changed delegate method in Bitmap_Delegate. DO NOT MERGE

Issue: https://code.google.com/p/android/issues/detail?id=60167
Change-Id: I3e1d6b9d52ca899889ba758b0ea91bd742cf5005
diff --git a/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java
index ec284ac..93284db 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java
@@ -308,8 +308,9 @@
     }
 
     @LayoutlibDelegate
-    /*package*/ static void nativeRecycle(int nativeBitmap) {
+    /*package*/ static boolean nativeRecycle(int nativeBitmap) {
         sManager.removeJavaReferenceFor(nativeBitmap);
+        return true;
     }
 
     @LayoutlibDelegate