remove unused xfermode methods

Bug: skia:
Change-Id: Ib0dfa7bbf3d4e73aab355df4d5f5e2a53f653809
Reviewed-on: https://skia-review.googlesource.com/19035
Reviewed-by: Mike Reed <reed@google.com>
diff --git a/src/gpu/effects/GrXfermodeFragmentProcessor.cpp b/src/gpu/effects/GrXfermodeFragmentProcessor.cpp
index aa1c1c7..8779c55 100644
--- a/src/gpu/effects/GrXfermodeFragmentProcessor.cpp
+++ b/src/gpu/effects/GrXfermodeFragmentProcessor.cpp
@@ -211,7 +211,7 @@
 
     // emit blend code
     SkBlendMode mode = cs.getMode();
-    fragBuilder->codeAppendf("// Compose Xfer Mode: %s\n", SkXfermode::ModeName(mode));
+    fragBuilder->codeAppendf("// Compose Xfer Mode: %s\n", SkBlendMode_Name(mode));
     GrGLSLBlend::AppendMode(fragBuilder,
                             srcColor.c_str(),
                             dstColor.c_str(),
@@ -426,7 +426,7 @@
         }
 
         // emit blend code
-        fragBuilder->codeAppendf("// Compose Xfer Mode: %s\n", SkXfermode::ModeName(mode));
+        fragBuilder->codeAppendf("// Compose Xfer Mode: %s\n", SkBlendMode_Name(mode));
         const char* childStr = childColor.c_str();
         if (ComposeOneFragmentProcessor::kDst_Child == child) {
             GrGLSLBlend::AppendMode(fragBuilder, inputColor, childStr, args.fOutputColor, mode);