Rename GrStencilBuffer to GrStencilAttachment

src/gpu/GrContext.cpp

Index: src/gpu/GrContext.cpp
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 7d53071a0e79ace0ef7357a059d250c168ef954a..8e611b0d00d2939255f99516f28097c119c5607b 100755
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -234,7 +234,7 @@ GrTextContext* GrContext::createTextContext(GrRenderTarget* renderTarget,
                                             leakyProperties,
                                             bool enableDistanceFieldFonts) {
     if (fGpu->caps()->pathRenderingSupport() && renderTarget->isMultisampled()) {
-        GrStencilBuffer* sb = renderTarget->renderTargetPriv().attachStencilBuffer();
+        GrStencilAttachment* sb = renderTarget->renderTargetPriv().attachStencilAttachment();
         if (sb) {
             return GrStencilAndCoverTextContext::Create(this, gpuDevice, leakyProperties);
         }