diff -r 000000000000 -r 6474c204b198 gfx/skia/trunk/src/gpu/gl/GrGLStencilBuffer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/skia/trunk/src/gpu/gl/GrGLStencilBuffer.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "GrGLStencilBuffer.h"
+#include "GrGpuGL.h"
+
+GrGLStencilBuffer::~GrGLStencilBuffer() {
+    this->release();
+}
+
+size_t GrGLStencilBuffer::sizeInBytes() const {
+    uint64_t size = this->width();
+    size *= this->height();
+    size *= fFormat.fTotalBits;
+    size *= GrMax(1,this->numSamples());
+    return static_cast<size_t>(size / 8);
+}
+
+void GrGLStencilBuffer::onRelease() {
+    if (0 != fRenderbufferID && !this->isWrapped()) {
+        GrGpuGL* gpuGL = (GrGpuGL*) this->getGpu();
+        const GrGLInterface* gl = gpuGL->glInterface();
+        GR_GL_CALL(gl, DeleteRenderbuffers(1, &fRenderbufferID));
+        fRenderbufferID = 0;
+    }
+
+    INHERITED::onRelease();
+}
+
+void GrGLStencilBuffer::onAbandon() {
+    fRenderbufferID = 0;
+
+    INHERITED::onAbandon();
+}