Add XferProcessor factory in GrPaint and GrDrawState.

src/gpu/GrBitmapTextContext.cpp

Index: src/gpu/GrBitmapTextContext.cpp
diff --git a/src/gpu/GrBitmapTextContext.cpp b/src/gpu/GrBitmapTextContext.cpp
index 2ff410e5cf278ca6b89c58e382c44af8b22f1720..5e2547fbaf298a1d778fe115466a59893aa6d6f0 100755
--- a/src/gpu/GrBitmapTextContext.cpp
+++ b/src/gpu/GrBitmapTextContext.cpp
@@ -587,9 +587,8 @@ void GrBitmapTextContext::flush() {
                 break;
                 // LCD text
             case kA565_GrMaskFormat: {
-                if (kOne_GrBlendCoeff != fPaint.getSrcBlendCoeff() ||
-                    kISA_GrBlendCoeff != fPaint.getDstBlendCoeff() ||
-                    fPaint.numColorStages()) {
+                SkASSERT(drawState.hasXPFactory());
+                if (!drawState.getXPFactory()->supportsLCDText(drawState)) {
                     SkDebugf("LCD Text will not draw correctly.\n");
                 }
                 SkASSERT(!drawState.hasColorVertexAttribute());