Lay groundwork for SkOpts.

src/core/SkOpts.h

Index: src/core/SkOpts.h
diff --git a/src/core/SkOpts.h b/src/core/SkOpts.h
new file mode 100644
index 0000000000000000000000000000000000000000..71abae5d7a57c9b8a74631675ef32a3e98e590e7
--- /dev/null
+++ b/src/core/SkOpts.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkOpts_DEFINED
+#define SkOpts_DEFINED
+
+#include "SkTypes.h"
+
+namespace SkOpts {
+    // Call to replace pointers to portable functions with pointers to CPU-specific functions.
+    // Thread-safe and idempotent.
+    // Called by SkGraphics::Init(), and automatically #if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS.
+    void Init();
+
+    // (Function pointers go here).
+}
+
+#endif//SkOpts_DEFINED