Move GrInvariantOutput out of GrProcessor and into its own class.

src/gpu/effects/GrCustomCoordsTextureEffect.cpp

Index: src/gpu/effects/GrCustomCoordsTextureEffect.cpp
diff --git a/src/gpu/effects/GrCustomCoordsTextureEffect.cpp b/src/gpu/effects/GrCustomCoordsTextureEffect.cpp
index afa075460386b71531ecc2bb35b659b0a4de571f..6a67bb0f9206e33427534f7681fca05a0d1f6912 100644
--- a/src/gpu/effects/GrCustomCoordsTextureEffect.cpp
+++ b/src/gpu/effects/GrCustomCoordsTextureEffect.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "GrCustomCoordsTextureEffect.h"
+#include "GrInvariantOutput.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 #include "gl/GrGLProcessor.h"
 #include "gl/GrGLSL.h"
@@ -62,7 +63,7 @@ bool GrCustomCoordsTextureEffect::onIsEqual(const GrGeometryProcessor& other) co
     return true;
 }
 
-void GrCustomCoordsTextureEffect::onComputeInvariantOutput(InvariantOutput* inout) const {
+void GrCustomCoordsTextureEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const {
     if (GrPixelConfigIsOpaque(this->texture(0)->config())) {
         inout->mulByUnknownOpaqueColor();
     } else {