Pass Bitmap instead of SkBitmap for bitmap rect operation
Test: refactoring cl.
bug:32216791

Change-Id: I66d19194c57b3aa2c400aa87acffc774a533776a
diff --git a/core/jni/android/graphics/Bitmap.cpp b/core/jni/android/graphics/Bitmap.cpp
index 6419aa4..adfc98e 100755
--- a/core/jni/android/graphics/Bitmap.cpp
+++ b/core/jni/android/graphics/Bitmap.cpp
@@ -52,7 +52,7 @@
     }
 
     bool valid() {
-        return !!mBitmap;
+        return mBitmap;
     }
 
     Bitmap& bitmap() {