Add useDFT field to SkDeviceProperties

Review URL: https://codereview.chromium.org/1191943002
diff --git a/src/gpu/GrStencilAndCoverTextContext.cpp b/src/gpu/GrStencilAndCoverTextContext.cpp
index d1b6a84..d086b3e 100644
--- a/src/gpu/GrStencilAndCoverTextContext.cpp
+++ b/src/gpu/GrStencilAndCoverTextContext.cpp
@@ -32,11 +32,10 @@
 
 GrStencilAndCoverTextContext*
 GrStencilAndCoverTextContext::Create(GrContext* context, GrDrawContext* drawContext,
-                                     const SkDeviceProperties& props, bool fallbackUsesDFT) {
+                                     const SkDeviceProperties& props) {
     GrStencilAndCoverTextContext* textContext = SkNEW_ARGS(GrStencilAndCoverTextContext,
                                                            (context, drawContext, props));
-    textContext->fFallbackTextContext = GrAtlasTextContext::Create(context, drawContext,
-                                                                   props, fallbackUsesDFT);
+    textContext->fFallbackTextContext = GrAtlasTextContext::Create(context, drawContext, props);
 
     return textContext;
 }