Small fix for RODrawState

src/gpu/GrRODrawState.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrRODrawState.h"
 #include "GrDrawTargetCaps.h"
 
@@ skipping 22 matching lines @@
     }
 
     bool usingVertexCoverage = this->hasCoverageVertexAttribute();
     if (!usingVertexCoverage && this->fCoverage != that.fCoverage) {
         return false;
     }
 
     bool explicitLocalCoords = this->hasLocalCoordAttribute();
     if (this->hasGeometryProcessor()) {
         if (!that.hasGeometryProcessor()) {
-            return kIncompatible_CombinedState;
+            return false;
         } else if (!GrEffectStage::AreCompatible(*this->getGeometryProcessor(),
                                                  *that.getGeometryProcessor(),
                                                  explicitLocalCoords)) {
-            return kIncompatible_CombinedState;
+            return false;
         }
     } else if (that.hasGeometryProcessor()) {
-        return kIncompatible_CombinedState;
+        return false;
     }
 
     for (int i = 0; i < this->numColorStages(); i++) {
         if (!GrEffectStage::AreCompatible(this->getColorStage(i), that.getColorStage(i),
                                           explicitLocalCoords)) {
             return false;
         }
     }
     for (int i = 0; i < this->numCoverageStages(); i++) {
         if (!GrEffectStage::AreCompatible(this->getCoverageStage(i), that.getCoverageStage(i),
@@ skipping 116 matching lines @@
      find that only 1, ISA, and ISC produce the correct destination when applied to S' and D.
      Also, if we're directly rendering coverage (isCoverageDrawing) then coverage is treated as
      color by definition.
      */
     return kOne_GrBlendCoeff == fDstBlend ||
            kISA_GrBlendCoeff == fDstBlend ||
            kISC_GrBlendCoeff == fDstBlend ||
            this->isCoverageDrawing();
 }