Change whitepaper link on security interstitial to point to the new #extendedreport anchor.

components/security_interstitials_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <grit-part>
   <!-- Shared strings for SSL-related interstitials -->
   <message name="IDS_SSL_OPEN_DETAILS_BUTTON" desc="The text for the button that expands the details on an error page. Paired with IDS_SSL_CLOSE_DETAILS_BUTTON.">
     Advanced
   </message>
   <message name="IDS_SSL_CLOSE_DETAILS_BUTTON" desc="The text for the button that hides the details on an error page. Paired with IDS_SSL_CLOSE_DETAILS_BUTTON.">
     Hide advanced
   </message>
 
@@ skipping 36 matching lines @@
     <message name="IDS_CLOCK_ERROR_EXPLANATION" desc="Body text under an 'Advanced' button. Context: error shown when the browser can't load a page because the device's clock is wrong. This paragraph explains why a correct clock is necessary.">
       To establish a secure connection, your clock needs to be set correctly. This is because the certificates that websites use to identify themselves are only valid for specific periods of time. Since your device's clock is incorrect, Chromium cannot verify these certificates.
     </message>
   </if>
 
   <!-- Extended reporting strings -->
   <message name="IDS_SAFE_BROWSING_PRIVACY_POLICY_URL" translateable="false">
     https://www.google.com/chrome/browser/privacy/#safe-browsing-policies
   </message>
   <message name="IDS_SAFE_BROWSING_WHITEPAPER_URL" translateable="false">
-    https://www.google.com/chrome/browser/privacy/whitepaper.html#malware
+    https://www.google.com/chrome/browser/privacy/whitepaper.html#extendedreport
   </message>
 
   <!-- SSL error page -->
   <message name="IDS_SSL_V2_TITLE" desc="The tab title for the SSL interstitial.">
     Privacy error
   </message>
   <message name="IDS_SSL_V2_HEADING" desc="The large heading at the top of the SSL interstitial.">
     Your connection is not private
   </message>
   <message name="IDS_SSL_V2_PRIMARY_PARAGRAPH" desc="The primary explanatory paragraph for the SSL interstitial.">
@@ skipping 112 matching lines @@
     Attackers on <ph name="BEGIN_BOLD">&lt;strong&gt;</ph><ph name="SITE">$1<ex>example.com</ex></ph><ph name="END_BOLD">&lt;/strong&gt;</ph> may trick you into doing something dangerous like installing software or revealing your personal information (for example, passwords, phone numbers, or credit cards).
   </message>
   <message name="IDS_PHISHING_V4_EXPLANATION_PARAGRAPH" desc="The explanation of why Safe Browsing has blocked the page.">
   Google Safe Browsing recently detected phishing on <ph name="SITE">$1<ex>example.com</ex></ph>. Phishing sites pretend to be other websites to trick you. <ph name="BEGIN_LEARN_MORE_LINK">&lt;a href="#" id="learn-more-link"&gt;</ph>Learn more<ph name="END_LEARN_MORE_LINK">&lt;/a&gt;</ph>.
   </message>
   <message name="IDS_PHISHING_V4_PROCEED_AND_REPORT_PARAGRAPH" desc="The paragraph that lets the user skip the warning.">
     You can <ph name="BEGIN_ERROR_LINK">&lt;a href="#" id="report-error-link"&gt;</ph>report a detection problem<ph name="END_ERROR_LINK">&lt;/a&gt;</ph> or, if you understand the risks to your security, <ph name="BEGIN_LINK">&lt;a href="#" id="proceed-link"&gt;</ph>visit this unsafe site<ph name="END_LINK">&lt;/a&gt;</ph>.
   </message>
 
 </grit-part>