Expand SecurityStyleChanged interfaces to include explanations

content/public/common/security_style.h

Index: content/public/common/security_style.h
diff --git a/content/public/common/security_style.h b/content/public/common/security_style.h
index a0086d5a64ceeb4a987187574d2d66e2bfb8c629..d492b007fa9b5091ba91747be5881637ebbf6089 100644
--- a/content/public/common/security_style.h
+++ b/content/public/common/security_style.h
@@ -5,6 +5,9 @@
 #ifndef CONTENT_PUBLIC_COMMON_SECURITY_STYLE_H_
 #define CONTENT_PUBLIC_COMMON_SECURITY_STYLE_H_
 
+#include <string>
+#include <vector>
+
 namespace content {
 
 // Various aspects of the UI change their appearance according to the security
@@ -39,6 +42,35 @@ enum SecurityStyle {
   SECURITY_STYLE_LAST = SECURITY_STYLE_AUTHENTICATED
 };
 
+// A human-readable summary phrase and more detailed description of a
+// security property that was used to compute the SecurityStyle of a
+// resource. An example summary phrase would be "Expired Certificate",
+// with a description along the lines of "This site's certificate chain
+// contains errors (net::CERT_DATE_INVALID)".
+struct SecurityStyleExplanation {
+  SecurityStyleExplanation();
+  SecurityStyleExplanation(const std::string& summary,
+                           const std::string& description);
+  ~SecurityStyleExplanation();
+
+  std::string summary;
+  std::string description;
+};
+
+// SecurityStyleExplanations contains human-readable explanations for
+// why a particular SecurityStyle was chosen. Each
+// SecurityStyleExplanation is a single security property of a page (for
+// example, an expired certificate or the presence of active mixed
+// content). A single site may have multiple different explanations of
+// "warning" and "broken" severity levels.
+struct SecurityStyleExplanations {
+  SecurityStyleExplanations();
+  ~SecurityStyleExplanations();
+
+  std::vector<SecurityStyleExplanation> warning_explanations;
+  std::vector<SecurityStyleExplanation> broken_explanations;
+};
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_SECURITY_STYLE_H_