Tweak layers caching for better performance in Launcher.

Change-Id: Ia6e67699d98f69c8a93385b3ecbdd814c7b16921
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index 2c1a82b..db3cb4d 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -44,8 +44,8 @@
 // Converts a number of mega-bytes into bytes
 #define MB(s) s * 1024 * 1024
 
-#define DEFAULT_TEXTURE_CACHE_SIZE 22.0f
-#define DEFAULT_LAYER_CACHE_SIZE 4.0f
+#define DEFAULT_TEXTURE_CACHE_SIZE 20.0f
+#define DEFAULT_LAYER_CACHE_SIZE 6.0f
 #define DEFAULT_PATH_CACHE_SIZE 4.0f
 #define DEFAULT_PATCH_CACHE_SIZE 512
 #define DEFAULT_GRADIENT_CACHE_SIZE 0.5f