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diff --git a/base/nsimage_cache_mac.h b/base/nsimage_cache_mac.h
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+// Copyright (c) 2009 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.
+
+#ifndef BASE_NSIMAGE_CACHE_MAC_H_
+#define BASE_NSIMAGE_CACHE_MAC_H_
+
+#ifdef __OBJC__
+@class NSImage;
+@class NSString;
+#else
+class NSImage;
+class NSString;
+#endif
+
+namespace nsimage_cache {
+
+// Returns an autoreleased image from the main app bundle
+// (mac_util::MainAppBundle()) with the given name, and keeps it in memory so
+// future fetches are fast.
+// NOTE:
+// - This should only be called on the main thread.
+// - The caller should retain the image if they want to keep it around, as
+// the cache could have limit on size/lifetime, etc.
+NSImage* ImageNamed(NSString* name);
+
+// Clears the cache.
+void Clear(void);
+
+} // namespace nsimage_cache
+
+#endif // BASE_NSIMAGE_CACHE_MAC_H_