Check XpFactory equality in DrawState

src/gpu/GrProcessor.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrProcessor.h"
 #include "GrContext.h"
 #include "GrCoordTransform.h"
 #include "GrGeometryData.h"
 #include "GrInvariantOutput.h"
 #include "GrMemoryPool.h"
+#include "GrXferProcessor.h"
 #include "SkTLS.h"
 
 #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
 
 class GrFragmentProcessor;
 class GrGeometryProcessor;
 
 /*
  * Originally these were both in the processor unit test header, but then it seemed to cause linker
  * problems on android.
@@ skipping 148 matching lines @@
 /*
  * GrGeometryData shares the same pool so it lives in this file too
  */
 void* GrGeometryData::operator new(size_t size) {
     return GrProcessor_Globals::GetTLS()->allocate(size);
 }
 
 void GrGeometryData::operator delete(void* target) {
     GrProcessor_Globals::GetTLS()->release(target);
 }
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+// Initial static variable from GrXPFactory
+int32_t GrXPFactory::gCurrXPFClassID =
+        GrXPFactory::kIllegalXPFClassID;
+