Clear plugin data together with cookies on shutdown.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index b0ba0bb2ea0800d662fa97dccb23d69b0bc5bdf9..bb758b66e2601345c28831625f450eb082fa1228 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5225,11 +5225,17 @@ Keep your key file in a safe place. You will need it to create new versions of y
         <message name="IDS_COOKIES_CLEAR_WHEN_CLOSE_CHKBOX" desc="A checkbox in the Content Settings dialog for removing all cookies on when browser is closed.">
           Clear cookies and other site data when I close my browser
         </message>
+        <message name="IDS_COOKIES_LSO_CLEAR_WHEN_CLOSE_CHKBOX" desc="A checkbox in the Content Settings dialog for removing all cookies on when browser is closed.">
+          Clear cookies and other site and plug-in data when I close my browser
+        </message>
       </if>
       <if expr="os == 'darwin'">
         <message name="IDS_COOKIES_CLEAR_WHEN_CLOSE_CHKBOX" desc="A checkbox in the Content Settings dialog for removing all cookies on when browser is quit (Mac).">
           Clear cookies and other site data when I quit my browser
         </message>
+        <message name="IDS_COOKIES_LSO_CLEAR_WHEN_CLOSE_CHKBOX" desc="A checkbox in the Content Settings dialog for removing all cookies on when browser is quit (Mac).">
+          Clear cookies and other site and plug-in data when I quit my browser
+        </message>
       </if>
 
       <message name="IDS_IMAGES_TAB_LABEL" desc="Label for Images tab on Content Settings dialog">