Implement skia sandbox callback

skia/ext/SkFontHost_sandbox_win.h

Index: skia/ext/SkFontHost_sandbox_win.h
diff --git a/skia/ext/SkFontHost_sandbox_win.h b/skia/ext/SkFontHost_sandbox_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..1658a42d800f4d325002fd659cfd6e65d7f54a98
--- /dev/null
+++ b/skia/ext/SkFontHost_sandbox_win.h
@@ -0,0 +1,12 @@
+// 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.
+
+namespace skia {
+    class ISandboxSupport {
+    public:
+        virtual void EnsureFontLoad(LOGFONT logfont) = 0;
+    };
+}
+
+static skia::ISandboxSupport* g_SandboxSupport;