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/RenderBufferCache.cpp b/libs/hwui/RenderBufferCache.cpp
index 11d7a6a..1ac57cd 100644
--- a/libs/hwui/RenderBufferCache.cpp
+++ b/libs/hwui/RenderBufferCache.cpp
@@ -40,16 +40,9 @@
 // Constructors/destructor
 ///////////////////////////////////////////////////////////////////////////////
 
-RenderBufferCache::RenderBufferCache(): mSize(0), mMaxSize(MB(DEFAULT_RENDER_BUFFER_CACHE_SIZE)) {
-    char property[PROPERTY_VALUE_MAX];
-    if (property_get(PROPERTY_RENDER_BUFFER_CACHE_SIZE, property, nullptr) > 0) {
-        INIT_LOGD("  Setting render buffer cache size to %sMB", property);
-        setMaxSize(MB(atof(property)));
-    } else {
-        INIT_LOGD("  Using default render buffer cache size of %.2fMB",
-                DEFAULT_RENDER_BUFFER_CACHE_SIZE);
-    }
-}
+RenderBufferCache::RenderBufferCache()
+        : mSize(0)
+        , mMaxSize(Properties::renderBufferCacheSize) {}
 
 RenderBufferCache::~RenderBufferCache() {
     clear();
@@ -67,11 +60,6 @@
     return mMaxSize;
 }
 
-void RenderBufferCache::setMaxSize(uint32_t maxSize) {
-    clear();
-    mMaxSize = maxSize;
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 // Caching
 ///////////////////////////////////////////////////////////////////////////////