Add getGLMatrix method to MatrixState

src/gpu/gl/GrGLUtil.h

Index: src/gpu/gl/GrGLUtil.h
diff --git a/src/gpu/gl/GrGLUtil.h b/src/gpu/gl/GrGLUtil.h
index 9a82b0b97afa89f37aa74d26a83a856e10f28b27..686943bdcef2c82626a43f4e8860208b3bb6d710 100644
--- a/src/gpu/gl/GrGLUtil.h
+++ b/src/gpu/gl/GrGLUtil.h
@@ -11,6 +11,8 @@
 #include "gl/GrGLInterface.h"
 #include "GrGLDefines.h"
 
+class SkMatrix;
+
 ////////////////////////////////////////////////////////////////////////////////
 
 typedef uint32_t GrGLVersion;
@@ -91,6 +93,11 @@ void GrGLCheckErr(const GrGLInterface* gl,
 
 void GrGLClearErr(const GrGLInterface* gl);
 
+/**
+ * Helper for converting SkMatrix to a column-major GL float array
+ */
+template<int MatrixSize> void GrGLGetMatrix(GrGLfloat* dest, const SkMatrix& src);
+
 ////////////////////////////////////////////////////////////////////////////////
 
 /**