Implemented a policy to match the ClearSiteDataOnExit pref.

chrome/app/nibs/ContentSettings.xib

Index: chrome/app/nibs/ContentSettings.xib
diff --git a/chrome/app/nibs/ContentSettings.xib b/chrome/app/nibs/ContentSettings.xib
index 614f45a97e8d5c54d4b4d595a58ece33da2ee208..8e615e58269e2fd068b121d28f218933d51f663a 100644
--- a/chrome/app/nibs/ContentSettings.xib
+++ b/chrome/app/nibs/ContentSettings.xib
@@ -2,7 +2,7 @@
 <archive type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="7.10">
 	<data>
 		<int key="IBDocument.SystemTarget">1050</int>
-		<string key="IBDocument.SystemVersion">10F2108</string>
+		<string key="IBDocument.SystemVersion">10F569</string>
 		<string key="IBDocument.InterfaceBuilderVersion">823</string>
 		<string key="IBDocument.AppKitVersion">1038.29</string>
 		<string key="IBDocument.HIToolboxVersion">461.00</string>
@@ -2872,6 +2872,26 @@ AAMAAAABAAEAAAFTAAMAAAAEAAAFwgAAAAAACAAIAAgACAABAAEAAQABA</bytes>
 					</object>
 					<int key="connectionID">265</int>
 				</object>
+				<object class="IBConnectionRecord">
+					<object class="IBBindingConnection" key="connection">
+						<string key="label">enabled: clearSiteDataOnExitManaged</string>
+						<reference key="source" ref="292289709"/>
+						<reference key="destination" ref="1001"/>
+						<object class="NSNibBindingConnector" key="connector">
+							<reference key="NSSource" ref="292289709"/>
+							<reference key="NSDestination" ref="1001"/>
+							<string key="NSLabel">enabled: clearSiteDataOnExitManaged</string>
+							<string key="NSBinding">enabled</string>
+							<string key="NSKeyPath">clearSiteDataOnExitManaged</string>
+							<object class="NSDictionary" key="NSOptions">
+								<string key="NS.key.0">NSValueTransformerName</string>
+								<string key="NS.object.0">NSNegateBoolean</string>
+							</object>
+							<int key="NSNibBindingConnectorVersion">2</int>
+						</object>
+					</object>
+					<int key="connectionID">268</int>
+				</object>
 			</object>
 			<object class="IBMutableOrderedSet" key="objectRecords">
 				<object class="NSArray" key="orderedObjects">
@@ -3832,7 +3852,7 @@ AAMAAAABAAEAAAFTAAMAAAAEAAAFwgAAAAAACAAIAAgACAABAAEAAQABA</bytes>
 				</object>
 			</object>
 			<nil key="sourceID"/>
-			<int key="maxID">265</int>
+			<int key="maxID">268</int>
 		</object>
 		<object class="IBClassDescriber" key="IBDocument.Classes">
 			<object class="NSMutableArray" key="referencedPartialClassDescriptions">