add copyright notices

git-svn-id: http://skia.googlecode.com/svn/trunk@10169 2bbb7eff-a529-9590-31e7-b0007b416f81

src/core/SkMipMap.cpp

@@ -1,3 +1,10 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
 #include "SkMipMap.h"
 #include "SkBitmap.h"
 #include "SkColorPriv.h"

src/core/SkMipMap.h

@@ -1,3 +1,10 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
 #ifndef SkMipMap_DEFINED
 #define SkMipMap_DEFINED