Check the warning "type" correctly for SSL warnings

After some refactoring work, the SSL warning JS code was no longer
checking the warning "type" correctly. This CL fixes that.

BUG=418851

Review URL: https://codereview.chromium.org/616743002

Cr-Commit-Position: refs/heads/master@{#297393}

chrome/browser/resources/security_warnings/ssl.js

@@ -11,7 +11,7 @@ var SSL_CMD_HELP = 4;
 var SSL_CMD_CLOCK = 5;
 
 function setupSSLDebuggingInfo() {
-  if (!loadTimeData.getBoolean('ssl'))
+  if (!loadTimeData.getString('type') == 'SSL')
     return;
 
   // The titles are not internationalized because this is debugging information