Glop ColorFilter & VertexBuffer support, initial enable

Enables Glop rendering for supported Rects and VertexBuffers
Also removes unused Query object

Change-Id: Ibe227bc362685a153159f75077664f0947764e06
diff --git a/libs/hwui/LayerRenderer.cpp b/libs/hwui/LayerRenderer.cpp
index d2f9a94..b4b14e8 100644
--- a/libs/hwui/LayerRenderer.cpp
+++ b/libs/hwui/LayerRenderer.cpp
@@ -337,7 +337,7 @@
     if (fbo) {
         // If possible, discard any enqueud operations on deferred
         // rendering architectures
-        if (Extensions::getInstance().hasDiscardFramebuffer()) {
+        if (Caches::getInstance().extensions().hasDiscardFramebuffer()) {
             GLuint previousFbo = renderState.getFramebuffer();
             if (fbo != previousFbo) {
                 renderState.bindFramebuffer(fbo);