Creating functions for uploading a mipmapped texture.

include/core/SkMipMapLevel.h

Index: include/core/SkMipMapLevel.h
diff --git a/include/core/SkMipMapLevel.h b/include/core/SkMipMapLevel.h
new file mode 100644
index 0000000000000000000000000000000000000000..f7f33f8919fa7d93d83994303b8392498b1bf694
--- /dev/null
+++ b/include/core/SkMipMapLevel.h
@@ -0,0 +1,31 @@
+/*
+ * 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 SkMipMapLevel_DEFINED
+#define SkMipMapLevel_DEFINED
+
+#include "SkTypes.h"
+
+class SkDiscardableMemory;
+
+typedef SkDiscardableMemory* (*SkDiscardableFactoryProc)(size_t bytes);
+
+struct SkMipMapLevel {
+    SkMipMapLevel(const void* texels, size_t rowBytes);
+
+    SkMipMapLevel() = delete;
+    SkMipMapLevel(const SkMipMapLevel& rhs) = default;
+    SkMipMapLevel(SkMipMapLevel&& rhs) = default;
+
+    SkMipMapLevel& operator =(const SkMipMapLevel& rhs) = default;
+    SkMipMapLevel& operator =(SkMipMapLevel&& rhs) = default;
+
+    const void* fTexels;
+    size_t fRowBytes;
+};
+
+#endif