app_list: Search result launch history and boost.

chrome/browser/ui/app_list/search/history_types.h

Index: chrome/browser/ui/app_list/search/history_types.h
diff --git a/chrome/browser/ui/app_list/search/history_types.h b/chrome/browser/ui/app_list/search/history_types.h
new file mode 100644
index 0000000000000000000000000000000000000000..aff81a2fcb80a403813e7f01b5c064430ecb5a73
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+++ b/chrome/browser/ui/app_list/search/history_types.h
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+// Copyright 2013 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 CHROME_BROWSER_UI_APP_LIST_SEARCH_HISTORY_TYPES_H_
+#define CHROME_BROWSER_UI_APP_LIST_SEARCH_HISTORY_TYPES_H_
+
+#include <map>
+#include <string>
+
+namespace app_list {
+
+// An enum that indicates how a search result id matches a query in history.
+enum KnownResultType {
+  UNKNOWN_RESULT = 0,
+  PERFECT_PRIMARY,    // Exactly the same query and in primary association
+  PERFECT_SECONDARY,  // Exactly the same query and in secondary association
+  PREFIX_PRIMARY,     // Query is a prefix and in primary association
+  PREFIX_SECONDARY,   // Query is a prefix and in secondary association
+};
+
+// KnownResults maps a result id to a KnownResultType.
+typedef std::map<std::string, KnownResultType> KnownResults;
+
+}  // namespace app_list
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_HISTORY_TYPES_H_