diff -r 000000000000 -r 6474c204b198 gfx/angle/src/libGLESv2/renderer/SwapChain.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/angle/src/libGLESv2/renderer/SwapChain.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+//
+// Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// SwapChain.h: Defines a back-end specific class that hides the details of the
+// implementation-specific swapchain.
+
+#ifndef LIBGLESV2_RENDERER_SWAPCHAIN_H_
+#define LIBGLESV2_RENDERER_SWAPCHAIN_H_
+
+#include "common/angleutils.h"
+
+namespace rx
+{
+
+class SwapChain
+{
+  public:
+    SwapChain(HWND window, HANDLE shareHandle, GLenum backBufferFormat, GLenum depthBufferFormat)
+        : mWindow(window), mShareHandle(shareHandle), mBackBufferFormat(backBufferFormat), mDepthBufferFormat(depthBufferFormat)
+    {
+    }
+
+    virtual ~SwapChain() {};
+
+    virtual EGLint resize(EGLint backbufferWidth, EGLint backbufferSize) = 0;
+    virtual EGLint reset(EGLint backbufferWidth, EGLint backbufferHeight, EGLint swapInterval) = 0;
+    virtual EGLint swapRect(EGLint x, EGLint y, EGLint width, EGLint height) = 0;
+    virtual void recreate() = 0;
+
+    virtual HANDLE getShareHandle() {return mShareHandle;};
+
+  protected:
+    const HWND mWindow;            // Window that the surface is created for.
+    const GLenum mBackBufferFormat;
+    const GLenum mDepthBufferFormat;
+
+    HANDLE mShareHandle;
+};
+
+}
+#endif // LIBGLESV2_RENDERER_SWAPCHAIN_H_