1 files changed, 64 insertions, 0 deletions
diff --git a/chromium/extensions/common/extension_icon_set.h b/chromium/extensions/common/extension_icon_set.h
new file mode 100644
index 00000000000..91ce0f51646
--- /dev/null
+++ b/chromium/extensions/common/extension_icon_set.h
@@ -0,0 +1,64 @@
+// Copyright 2014 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 EXTENSIONS_COMMON_EXTENSION_ICON_SET_H_
+#define EXTENSIONS_COMMON_EXTENSION_ICON_SET_H_
+
+#include <map>
+#include <set>
+#include <string>
+
+namespace base {
+class FilePath;
+}
+
+// Represents the set of icons for an extension.
+class ExtensionIconSet {
+ public:
+  // Get an icon from the set, optionally falling back to a smaller or bigger
+  // size. MatchType is exclusive (do not OR them together).
+  enum MatchType {
+    MATCH_EXACTLY,
+    MATCH_BIGGER,
+    MATCH_SMALLER
+  };
+
+  // Access to the underlying map from icon size->{path, bitmap}.
+  typedef std::map<int, std::string> IconMap;
+
+  ExtensionIconSet();
+  ExtensionIconSet(const ExtensionIconSet& other);
+  ~ExtensionIconSet();
+
+  const IconMap& map() const { return map_; }
+  bool empty() const { return map_.empty(); }
+
+  // Remove all icons from the set.
+  void Clear();
+
+  // Add an icon path to the set. If a path for the specified size is already
+  // present, it is overwritten.
+  void Add(int size, const std::string& path);
+
+  // Gets path value of the icon found when searching for |size| using
+  // |mathc_type|.
+  const std::string& Get(int size, MatchType match_type) const;
+
+  // Returns true iff the set contains the specified path.
+  bool ContainsPath(const std::string& path) const;
+
+  // Returns icon size if the set contains the specified path or 0 if not found.
+  int GetIconSizeFromPath(const std::string& path) const;
+
+  // Add the paths of all icons in this set into |paths|, handling the
+  // conversion of (string) -> (base::FilePath). Note that these paths are not
+  // validated in any way, so they may be invalid paths or reference
+  // nonexistent files.
+  void GetPaths(std::set<base::FilePath>* paths) const;
+
+ private:
+  IconMap map_;
+};
+
+#endif  // EXTENSIONS_COMMON_EXTENSION_ICON_SET_H_