Create a static instances of SrcOver XferProcessor

src/gpu/gl/GrGLProgramDesc.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "GrGLProgramDesc.h"
 
 #include "GrProcessor.h"
 #include "GrGLGpu.h"
@@ skipping 129 matching lines @@
 
     // make sure any padding in the header is zeroed.
     memset(header, 0, kHeaderSize);
 
     if (pipeline.readsFragPosition()) {
         header->fFragPosKey =
                 GrGLSLFragmentShaderBuilder::KeyForFragmentPosition(pipeline.getRenderTarget());
     } else {
         header->fFragPosKey = 0;
     }
+
+    if (pipeline.ignoresCoverage()) {
+        header->fIgnoresCoverage = 1;
+    } else {
+        header->fIgnoresCoverage = 0;
+    }
+
     header->fSnapVerticesToPixelCenters = pipeline.snapVerticesToPixelCenters();
     header->fColorEffectCnt = pipeline.numColorFragmentProcessors();
     header->fCoverageEffectCnt = pipeline.numCoverageFragmentProcessors();
     glDesc->finalize();
     return true;
 }