(Original patch reviewed at http://codereview.chromium.org/2067003 )...

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/generated_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 5032 matching lines @@
       </message>
       <message name="IDS_PAGE_INFO_SECURITY_TAB_ENCRYPTED_CONNECTION_TEXT" desc="The text of the connection section when the connection is encrypted.">
         Your connection to <ph name="DOMAIN">$1<ex>www.google.com</ex></ph> is encrypted with <ph name="BIT_COUNT">$2<ex>128</ex></ph>-bit encryption.
       </message>
       <message name="IDS_PAGE_INFO_SECURITY_TAB_WEAK_ENCRYPTION_CONNECTION_TEXT" desc="The text of the connection section when the connection uses weak encryption.">
         Your connection to <ph name="DOMAIN">$1<ex>www.google.com</ex></ph> is encrypted with weak encryption.
       </message>
       <message name="IDS_PAGE_INFO_SECURITY_TAB_NOT_ENCRYPTED_CONNECTION_TEXT" desc="The text of the connection section when the connection is not encrypted.">
         Your connection to <ph name="DOMAIN">$1<ex>www.google.com</ex></ph> is not encrypted.
       </message>
-      <message name="IDS_PAGE_INFO_SECURITY_TAB_ENCRYPTED_MIXED_CONTENT_WARNING" desc="Some extra text of the connection section when the connection is encrypted and there is some mixed content on the page.">
-        However, this page includes other resources which are not secure. These resources can be viewed by others while in transit, and can be modified by an attacker to change the look or behavior of the page.
+      <message name="IDS_PAGE_INFO_SECURITY_TAB_ENCRYPTED_MIXED_CONTENT_WARNING" desc="Some extra text of the connection section when the connection is encrypted and the page contains mixed content which has been displayed (e.g. images, CSS).">
+        However, this page includes other resources which are not secure. These resources can be viewed by others while in transit, and can be modified by an attacker to change the look of the page.
+      </message>
+      <message name="IDS_PAGE_INFO_SECURITY_TAB_ENCRYPTED_MIXED_CONTENT_ERROR" desc="Some extra text of the connection section when the connection is encrypted and the page contains mixed content which has been run (e.g. script).">
+        However, this page includes other resources which are not secure. These resources can be viewed by others while in transit, and can be modified by an attacker to change the behavior of the page.
       </message>
       <message name="IDS_PAGE_INFO_SECURITY_TAB_ENCRYPTED_SENTENCE_LINK" desc="Linking 2 sentences in 1 paragraph.">
         <ph name="SENTENCE1">$1<ex>Your connection is encrypted.</ex></ph> <ph name="SENTENCE2">$2<ex>However, this page includes resources from other pages whose identity cannot be verified.</ex></ph>
       </message>
 
       <!-- SSL Blocking Page -->
       <message name="IDS_SSL_BLOCKING_PAGE_TITLE" desc="The title of the SSL blocking page.">
         SSL Error
       </message>
       <message name="IDS_SSL_BLOCKING_PAGE_PROCEED" desc="Proceed button text of the SSL blocking page.">
@@ skipping 2610 matching lines @@
 
     </messages>
 
     <structures first_id="50000" fallback_to_english="true">
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
 
   </release>
 </grit>