Add a field trial for using lower sqlite cache sizes.

chrome/browser/history/history_field_trial.h

Index: chrome/browser/history/history_field_trial.h
===================================================================
--- chrome/browser/history/history_field_trial.h	(revision 0)
+++ chrome/browser/history/history_field_trial.h	(revision 0)
@@ -0,0 +1,26 @@
+// Copyright (c) 2011 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_HISTORY_HISTORY_FIELD_TRIAL_H_
+#define CHROME_BROWSER_HISTORY_HISTORY_FIELD_TRIAL_H_
+
+#include <string>
+
+namespace history {
+
+class HistoryFieldTrial {
+ public:
+  static void Activate();
+
+  // Returns true if history should try to use less memory.
+  static bool IsLowMemFieldTrial();
+
+  // Returns the group name as a suffix to append to histogram names for the
+  // current field trial, or the empty string if none.
+  static std::string GetGroupSuffix();
+};
+
+}  // namespace history
+
+#endif  // CHROME_BROWSER_HISTORY_HISTORY_FIELD_TRIAL_H_
Property changes on: chrome\browser\history\history_field_trial.h
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Added: svn:eol-style
   + LF