Add support for blending of LCD for all blend modes.

src/gpu/GrPipelineBuilder.cpp

Index: src/gpu/GrPipelineBuilder.cpp
diff --git a/src/gpu/GrPipelineBuilder.cpp b/src/gpu/GrPipelineBuilder.cpp
index 39520d4d8d5e660b6fe85c4f31a8e7082a0e7033..d2c4c371d185e43f2b7e7846b4f489d511f5b766 100644
--- a/src/gpu/GrPipelineBuilder.cpp
+++ b/src/gpu/GrPipelineBuilder.cpp
@@ -116,3 +116,4 @@ void GrPipelineBuilder::calcCoverageInvariantOutput(const GrDrawBatch* batch) co
     fCoverageProcInfo.calcCoverageWithBatch(batch, fCoverageFragmentProcessors.begin(),
                                             this->numCoverageFragmentProcessors());
 }
+