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diff --git a/components/search/search.h b/components/search/search.h
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+++ b/components/search/search.h
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+// 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 COMPONENTS_SEARCH_SEARCH_H_
+#define COMPONENTS_SEARCH_SEARCH_H_
+
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/strings/string16.h"
+
+namespace chrome {
+
+// Returns whether the Instant Extended API is enabled.
+bool IsInstantExtendedAPIEnabled();
+
+// Returns the value to pass to the &espv CGI parameter when loading the
+// embedded search page from the user's default search provider. Returns 0 if
+// the Instant Extended API is not enabled.
+uint64 EmbeddedSearchPageVersion();
+
+// Type for a collection of experiment configuration parameters.
+typedef std::vector<std::pair<std::string, std::string> > FieldTrialFlags;
+
+// Finds the active field trial group name and parses out the configuration
+// flags. On success, |flags| will be filled with the field trial flags. |flags|
+// must not be NULL. Returns true iff the active field trial is successfully
+// parsed and not disabled.
+// Note that |flags| may be successfully populated in some cases when false is
+// returned - in these cases it should not be used.
+// Exposed for testing only.
+bool GetFieldTrialInfo(FieldTrialFlags* flags);
+
+// Given a FieldTrialFlags object, returns the string value of the provided
+// flag.
+// Exposed for testing only.
+std::string GetStringValueForFlagWithDefault(const std::string& flag,
+                                             const std::string& default_value,
+                                             const FieldTrialFlags& flags);
+
+// Given a FieldTrialFlags object, returns the uint64 value of the provided
+// flag.
+// Exposed for testing only.
+uint64 GetUInt64ValueForFlagWithDefault(const std::string& flag,
+                                        uint64 default_value,
+                                        const FieldTrialFlags& flags);
+
+// Given a FieldTrialFlags object, returns the bool value of the provided flag.
+// Exposed for testing only.
+bool GetBoolValueForFlagWithDefault(const std::string& flag,
+                                    bool default_value,
+                                    const FieldTrialFlags& flags);
+
+}  // namespace chrome
+
+#endif  // COMPONENTS_SEARCH_SEARCH_H_