Cleanup GPU gamut transformation code

src/gpu/glsl/GrGLSLProgramDataManager.cpp

Index: src/gpu/glsl/GrGLSLProgramDataManager.cpp
diff --git a/src/gpu/glsl/GrGLSLProgramDataManager.cpp b/src/gpu/glsl/GrGLSLProgramDataManager.cpp
index 0c98e08edd2abec34a2f95f00f5e1f2f9ff6167d..0803f7af69d66c7128ef3b7616dcb15c7d688b4c 100644
--- a/src/gpu/glsl/GrGLSLProgramDataManager.cpp
+++ b/src/gpu/glsl/GrGLSLProgramDataManager.cpp
@@ -8,6 +8,7 @@
 #include "glsl/GrGLSLProgramDataManager.h"
 
 #include "SkMatrix.h"
+#include "SkMatrix44.h"
 
 void GrGLSLProgramDataManager::setSkMatrix(UniformHandle u, const SkMatrix& matrix) const {
     float mt[] = {
@@ -23,3 +24,10 @@ void GrGLSLProgramDataManager::setSkMatrix(UniformHandle u, const SkMatrix& matr
     };
     this->setMatrix3f(u, mt);
 }
+
+void GrGLSLProgramDataManager::setSkMatrix44(UniformHandle u, const SkMatrix44& matrix) const {
+    // TODO: We could skip this temporary buffer if we had direct access to the matrix storage
+    float m[16];
+    matrix.asColMajorf(m);
+    this->setMatrix4f(u, m);
+}