Add libva to chromium third_party.

third_party/libva/va/glx/va_glx_impl.h

Index: third_party/libva/va/glx/va_glx_impl.h
diff --git a/third_party/libva/va/glx/va_glx_impl.h b/third_party/libva/va/glx/va_glx_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..fbdcac25962e74bd3a35404198e8e5e7a576ac45
--- /dev/null
+++ b/third_party/libva/va/glx/va_glx_impl.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2009 Splitted-Desktop Systems. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef VA_GLX_IMPL_H
+#define VA_GLX_IMPL_H
+
+/**
+ * Initialize GLX driver context
+ *
+ * @param[in]  ctx        the VA driver context
+ * @return VA_STATUS_SUCCESS if successful
+ */
+VAStatus va_glx_init_context(VADriverContextP ctx);
+    /* ATTRIBUTE_HIDDEN; */
+
+#endif /* VA_GLX_IMPL_H */