Update protocol.json to support explanations for securityStateChanged.

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index 090678dbf1739e49d87fc4126ed6f37af69bc981..ce5b60d726c5d21df04e366934111f8cc9a5af8b 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -5010,6 +5010,16 @@
                 "type": "string",
                 "enum": ["unknown", "http", "insecure", "warning", "secure"],
                 "description": "The security level of a page or resource."
+            },
+            {
+                "id": "SecurityStateExplanation",

[pfeldman, 2015/06/18 06:45:15]

StateExplanation

+                "type": "object",
+                "properties": [
+                    { "name": "securityState", "$ref": "SecurityState", "description": "Security state representing the severity of the factor being explained." },
+                    { "name": "summary", "type": "string", "description": "Short phrase describing the type of factor." },
+                    { "name": "description", "type": "string", "description": "Full text explanation of the factor." }
+                ],
+                "description": "An explanation of an factor contributing to the security state."
             }
         ],
         "commands": [
@@ -5029,7 +5039,8 @@
                 "name": "securityStateChanged",
                 "description": "The security state of the page changed.",
                 "parameters": [
-                    { "name": "securityState", "$ref": "SecurityState", "description": "Security state." }
+                    { "name": "securityState", "$ref": "SecurityState", "description": "Security state." },
+                    { "name": "explanations", "type": "array", "items": { "$ref": "SecurityStateExplanation" }, "description": "List of explanations for the security state. If the overall security state is `insecure` or `warning`, at least one corresponding explanation should be included.", "optional": true }
                 ],
                 "handlers": ["browser"]
             }