Add support to GrGLInterface for vertex array objects

src/gpu/gl/debug/GrDebugGL.cpp

Index: src/gpu/gl/debug/GrDebugGL.cpp
===================================================================
--- src/gpu/gl/debug/GrDebugGL.cpp	(revision 7907)
+++ src/gpu/gl/debug/GrDebugGL.cpp	(working copy)
@@ -14,8 +14,8 @@
 #include "GrShaderObj.h"
 #include "GrProgramObj.h"
 #include "GrTextureUnitObj.h"
+#include "GrVertexArrayObj.h"
 
-
 GrDebugGL* GrDebugGL::gObj = NULL;
 int GrDebugGL::gStaticRefCount = 0;
 GrDebugGL::Create GrDebugGL::gFactoryFunc[kObjTypeCount] = {
@@ -26,6 +26,7 @@
     GrShaderObj::createGrShaderObj,
     GrProgramObj::createGrProgramObj,
     GrTextureUnitObj::createGrTextureUnitObj,
+    GrVertexArrayObj::createGrVertexArrayObj,
 };
 
 
@@ -38,7 +39,8 @@
     , fFrameBuffer(NULL)
     , fRenderBuffer(NULL)
     , fProgram(NULL)
-    , fTexture(NULL) {
+    , fTexture(NULL)
+    , fVertexArray(NULL)  {
 
     for (int i = 0; i < kDefaultMaxTextureUnits; ++i) {
 
@@ -70,6 +72,7 @@
     fRenderBuffer = NULL;
     fProgram = NULL;
     fTexture = NULL;
+    fVertexArray = NULL;
 }
 
 GrFakeRefObj *GrDebugGL::findObject(GrGLuint ID, GrObjTypes type) {
@@ -107,6 +110,13 @@
     }
 }
 
+void GrDebugGL::setVertexArray(GrVertexArrayObj* vertexArray) {
+    if (NULL != vertexArray) {
+        GrAssert(!vertexArray->getDeleted());
+    }
+    SkRefCnt_SafeAssign(fVertexArray, vertexArray);
+}
+
 void GrDebugGL::setElementArrayBuffer(GrBufferObj *elementArrayBuffer) {
     if (fElementArrayBuffer) {
         // automatically break the binding of the old buffer