Create ppapi_proxy.dll.

ppapi/thunk/ppapi_thunk_export.h

Index: ppapi/thunk/ppapi_thunk_export.h
===================================================================
--- ppapi/thunk/ppapi_thunk_export.h	(revision 0)
+++ ppapi/thunk/ppapi_thunk_export.h	(revision 0)
@@ -0,0 +1,26 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_THUNK_PPAPI_THUNK_EXPORT_H_
+#define PPAPI_THUNK_PPAPI_THUNK_EXPORT_H_
+#pragma once
+
+#if defined(COMPONENT_BUILD)
+#if defined(WIN32)
+
+#if defined(PPAPI_THUNK_IMPLEMENTATION)
+#define PPAPI_THUNK_EXPORT __declspec(dllexport)
+#else
+#define PPAPI_THUNK_EXPORT __declspec(dllimport)
+#endif  // defined(PPAPI_THUNK_IMPLEMENTATION)
+
+#else  // defined(WIN32)
+#define PPAPI_THUNK_EXPORT __attribute__((visibility("default")))
+#endif
+
+#else  // defined(COMPONENT_BUILD)
+#define PPAPI_THUNK_EXPORT
+#endif
+
+#endif  // PPAPI_THUNK_PPAPI_THUNK_EXPORT_H_