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/Extensions.h b/libs/hwui/Extensions.h
index 25d4c5e..731001a 100644
--- a/libs/hwui/Extensions.h
+++ b/libs/hwui/Extensions.h
@@ -23,6 +23,8 @@
 #include <utils/SortedVector.h>
 #include <utils/String8.h>
 
+#include <GLES2/gl2.h>
+
 namespace android {
 namespace uirenderer {
 
@@ -30,8 +32,10 @@
 // Classes
 ///////////////////////////////////////////////////////////////////////////////
 
-class ANDROID_API Extensions: public Singleton<Extensions> {
+class ANDROID_API Extensions {
 public:
+    Extensions();
+
     inline bool hasNPot() const { return mHasNPot; }
     inline bool hasFramebufferFetch() const { return mHasFramebufferFetch; }
     inline bool hasDiscardFramebuffer() const { return mHasDiscardFramebuffer; }
@@ -55,13 +59,8 @@
     void dump() const;
 
 private:
-    Extensions();
-    ~Extensions();
-
     void findExtensions(const char* extensions, SortedVector<String8>& list) const;
 
-    friend class Singleton<Extensions>;
-
     SortedVector<String8> mGlExtensionList;
     SortedVector<String8> mEglExtensionList;