Unrevert r141537: Add extensions::StateStore and use that instead of

base/value_conversions.h

Index: base/value_conversions.h
diff --git a/base/value_conversions.h b/base/value_conversions.h
index c65e6275f9fbf594531201ea153e708f97f69d19..7825bb1451649af0421f7aa42e2f0f1066695c0a 100644
--- a/base/value_conversions.h
+++ b/base/value_conversions.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -6,7 +6,7 @@
 #define BASE_VALUE_CONVERSIONS_H_
 #pragma once
 
-// This file contains methods to convert a |FilePath| to a |Value| and back.
+// This file contains methods to convert things to a |Value| and back.
 
 #include "base/base_export.h"
 
@@ -14,6 +14,7 @@ class FilePath;
 
 namespace base {
 
+class Time;
 class StringValue;
 class Value;
 
@@ -21,6 +22,9 @@ class Value;
 BASE_EXPORT StringValue* CreateFilePathValue(const FilePath& in_value);
 BASE_EXPORT bool GetValueAsFilePath(const Value& value, FilePath* file_path);
 
+BASE_EXPORT StringValue* CreateTimeValue(const Time& time);
+BASE_EXPORT bool GetValueAsTime(const Value& value, Time* time);
+
 }  // namespace
 
 #endif  // BASE_VALUE_CONVERSIONS_H_