Move several property queries to Properties class

bug:17478770

This removes a lot of redundant property query code, and puts the
queries all in one place, so defining them automatically will be simpler
in the future.

Change-Id: I0428550e6081f07bc6554ffdf73b22284325abb8
diff --git a/libs/hwui/PathCache.h b/libs/hwui/PathCache.h
index 18f380f..d2633aa 100644
--- a/libs/hwui/PathCache.h
+++ b/libs/hwui/PathCache.h
@@ -300,7 +300,7 @@
 
     LruCache<PathDescription, PathTexture*> mCache;
     uint32_t mSize;
-    uint32_t mMaxSize;
+    const uint32_t mMaxSize;
     GLuint mMaxTextureSize;
 
     bool mDebugEnabled;