Update libva headers to the latest release (1.2.1).

content/common/gpu/media/vaapi_wrapper.h

Index: content/common/gpu/media/vaapi_wrapper.h
diff --git a/content/common/gpu/media/vaapi_wrapper.h b/content/common/gpu/media/vaapi_wrapper.h
index aa277fd3860a86d9a4dbbb594e26f52033592018..82bae94f8539f4d786ec3474bff05f1b12bed6ee 100644
--- a/content/common/gpu/media/vaapi_wrapper.h
+++ b/content/common/gpu/media/vaapi_wrapper.h
@@ -81,6 +81,9 @@ class CONTENT_EXPORT VaapiWrapper {
   // Do any necessary initialization before the sandbox is enabled.
   static void PreSandboxInitialization();
 
+  // Returns true if the VAAPI version is less than the specified version.
+  bool VAAPIVersionLessThan(int major, int minor);
+
  private:
   VaapiWrapper();
 
@@ -106,6 +109,9 @@ class CONTENT_EXPORT VaapiWrapper {
   // Allocated ids for VASurfaces.
   std::vector<VASurfaceID> va_surface_ids_;
 
+  // The VAAPI version.
+  int major_version_, minor_version_;
+
   // VA handles.
   // Both valid after successful Initialize() and until Deinitialize().
   VADisplay va_display_;