Add separate plumbing for subresources with certificate errors

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index c34b11889a9e5edaaecd2bee0d09d5edbd8a1f2e..4baed231555bddeedc7fd36fc200ebfb1c057358 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -364,9 +364,14 @@ class WebContents : public PageNavigator,
   // Returns the character encoding of the page.
   virtual const std::string& GetEncoding() const = 0;
 
-  // True if this is a secure page which displayed insecure content.
+  // True if this is a secure page which displayed content loaded over
+  // an insecure (HTTP) connection.
   virtual bool DisplayedInsecureContent() const = 0;
 
+  // True if this is a secure page which displayed content loaded over
+  // a connection with certificate errors.
+  virtual bool DisplayedContentWithCertificateErrors() const = 0;
+
   // Internal state ------------------------------------------------------------
 
   // Indicates whether the WebContents is being captured (e.g., for screenshots