Rename GrStencilBuffer to GrStencilAttachment

src/gpu/GrGpu.cpp

Index: src/gpu/GrGpu.cpp
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index d7d4ae7fd481f29eca1b3806f007cc7c4bc539e0..32abfc814f7ef51c2af89d301b2e2f9ae6f39ed5 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -16,7 +16,7 @@
 #include "GrIndexBuffer.h"
 #include "GrResourceCache.h"
 #include "GrRenderTargetPriv.h"
-#include "GrStencilBuffer.h"
+#include "GrStencilAttachment.h"
 #include "GrVertexBuffer.h"
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -89,8 +89,8 @@ bool GrGpu::attachStencilBufferToRenderTarget(GrRenderTarget* rt) {
     }
 #endif
 
-    GrStencilBuffer::ComputeSharedStencilBufferKey(width, height, rt->numSamples(), &sbKey);
-    SkAutoTUnref<GrStencilBuffer> sb(static_cast<GrStencilBuffer*>(
+    GrStencilAttachment::ComputeSharedStencilAttachmentKey(width, height, rt->numSamples(), &sbKey);
+    SkAutoTUnref<GrStencilAttachment> sb(static_cast<GrStencilAttachment*>(
         this->getContext()->getResourceCache()->findAndRefUniqueResource(sbKey)));
     if (sb) {
         if (this->attachStencilBufferToRenderTarget(sb, rt)) {
@@ -109,7 +109,7 @@ bool GrGpu::attachStencilBufferToRenderTarget(GrRenderTarget* rt) {
         // FBO. But iOS doesn't allow a stencil-only FBO. It reports unsupported
         // FBO status.
         this->clearStencil(rt);
-        GrStencilBuffer* sb = rt->renderTargetPriv().getStencilBuffer();
+        GrStencilAttachment* sb = rt->renderTargetPriv().getStencilBuffer();
         sb->resourcePriv().setUniqueKey(sbKey);
         return true;
     } else {