[Mac] Implement the cookie manager

chrome/app/nibs/Preferences.xib

Index: chrome/app/nibs/Preferences.xib
diff --git a/chrome/app/nibs/Preferences.xib b/chrome/app/nibs/Preferences.xib
index bcf9ac4b1e43ad7ee86823585faf822c25ea5b90..3b47dfa1962b444e75c074ab6be5fc010a6520ef 100644
--- a/chrome/app/nibs/Preferences.xib
+++ b/chrome/app/nibs/Preferences.xib
@@ -486,7 +486,7 @@
 						<reference key="NSSuperview" ref="1016273328"/>
 						<bool key="NSEnabled">YES</bool>
 						<object class="NSButtonCell" key="NSCell" id="441531293">
-							<int key="NSCellFlags">604110336</int>
+							<int key="NSCellFlags">67239424</int>
 							<int key="NSCellFlags2">134217728</int>
 							<string key="NSContents">^IDS_OPTIONS_COOKIES_SHOWCOOKIES</string>
 							<reference key="NSSupport" ref="445696277"/>
@@ -3606,6 +3606,14 @@ AAMAAAABAAEAAAFTAAMAAAAEAAAFwgAAAAAACAAIAAgACAABAAEAAQABA</bytes>
 					</object>
 					<int key="connectionID">617</int>
 				</object>
+				<object class="IBConnectionRecord">
+					<object class="IBActionConnection" key="connection">
+						<string key="label">showCookies:</string>
+						<reference key="source" ref="1001"/>
+						<reference key="destination" ref="1054376288"/>
+					</object>
+					<int key="connectionID">618</int>
+				</object>
 			</object>
 			<object class="IBMutableOrderedSet" key="objectRecords">
 				<object class="NSArray" key="orderedObjects">
@@ -5218,7 +5226,7 @@ AAMAAAABAAEAAAFTAAMAAAAEAAAFwgAAAAAACAAIAAgACAABAAEAAQABA</bytes>
 				</object>
 			</object>
 			<nil key="sourceID"/>
-			<int key="maxID">617</int>
+			<int key="maxID">618</int>
 		</object>
 		<object class="IBClassDescriber" key="IBDocument.Classes">
 			<object class="NSMutableArray" key="referencedPartialClassDescriptions">
@@ -5378,6 +5386,7 @@ AAMAAAABAAEAAAFTAAMAAAAEAAAFwgAAAAAACAAIAAgACAABAAEAAQABA</bytes>
 							<string>privacyLearnMore:</string>
 							<string>removeSelectedHomepages:</string>
 							<string>resetThemeToDefault:</string>
+							<string>showCookies:</string>
 							<string>showPreferences:</string>
 							<string>showSavedPasswords:</string>
 							<string>themesGallery:</string>
@@ -5402,6 +5411,7 @@ AAMAAAABAAEAAAFTAAMAAAAEAAAFwgAAAAAACAAIAAgACAABAAEAAQABA</bytes>
 							<string>id</string>
 							<string>id</string>
 							<string>id</string>
+							<string>id</string>
 						</object>
 					</object>
 					<object class="NSMutableDictionary" key="outlets">