Add certificate error handling to devtools.

third_party/WebKit/Source/core/inspector/browser_protocol.json

 {
     "version": { "major": "1", "minor": "2" },
     "domains": [{
         "domain": "Inspector",
         "experimental": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications."
@@ skipping 865 matching lines @@
                 "type": "object",
                 "properties": [
                     { "name": "ranMixedContent", "type": "boolean", "description": "True if the page was loaded over HTTPS and ran mixed (HTTP) content such as scripts." },
                     { "name": "displayedMixedContent", "type": "boolean", "description": "True if the page was loaded over HTTPS and displayed mixed (HTTP) content such as images." },
                     { "name": "ranContentWithCertErrors", "type": "boolean", "description": "True if the page was loaded over HTTPS without certificate errors, and ran content such as scripts that were loaded with certificate errors." },
                     { "name": "displayedContentWithCertErrors", "type": "boolean", "description": "True if the page was loaded over HTTPS without certificate errors, and displayed content such as images that were loaded with certificate errors." },
                     { "name": "ranInsecureContentStyle", "$ref": "SecurityState", "description": "Security state representing a page that ran insecure content." },
                     { "name": "displayedInsecureContentStyle", "$ref": "SecurityState", "description": "Security state representing a page that displayed insecure content." }
                 ],
                 "description": "Information about insecure content on the page."
+            },
+            {
+                "id": "CertificateErrorAction",
+                "type": "string",
+                "enum": ["continue", "cancel", "deny"],
+                "description": "The action to take when a certificate error occurs."

[Eric Seckler, 2017/01/19 11:42:28]

nit: add a short description about what each enum value means.

[irisu, 2017/02/07 23:30:19]

Done.

             }
         ],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables tracking security state changes."
             },
             {
                 "name": "disable",
                 "description": "Disables tracking security state changes."
             },
             {
                 "name": "showCertificateViewer",
                 "description": "Displays native dialog with the certificate details."
+            },
+            {
+                "name": "handleCertificateError",
+                "description": "Handles a certificate error.",
+                "parameters": [
+                    { "name": "eventID", "type": "integer", "description": "The ID of the event."},
+                    { "name": "action", "$ref": "CertificateErrorAction", "description": "The action to take on the certificate error." }
+                ]
             }
         ],
         "events": [
             {
                 "name": "securityStateChanged",
                 "description": "The security state of the page changed.",
                 "parameters": [
                     { "name": "securityState", "$ref": "SecurityState", "description": "Security state." },
                     { "name": "schemeIsCryptographic", "type": "boolean", "description": "True if the page was loaded over cryptographic transport such as HTTPS." },
                     { "name": "explanations", "type": "array", "items": { "$ref": "SecurityStateExplanation" }, "description": "List of explanations for the security state. If the overall security state is `insecure` or `warning`, at least one corresponding explanation should be included." },
                     { "name": "insecureContentStatus", "$ref": "InsecureContentStatus", "description": "Information about insecure content on the page." },
                     { "name": "summary", "type": "string", "description": "Overrides user-visible description of the state.", "optional": true }
                 ]
+            },
+            {
+                "name": "certificateError",

[Eric Seckler, 2017/01/19 11:42:28]

The bot seems to complain that Security.SecurityDispatcher doesn't yet handle
this event. Looks like you'll have to add a stub implementation to the class in
third_party/WebKit/Source/devtools/front_end/security/SecurityModel.js

[irisu, 2017/02/07 23:30:20]

Done.

+                "description": "There is a certificate error.",
+                "parameters": [
+                    { "name": "eventID", "type": "integer", "description": "The ID of the event."}
+                ]
             }
         ]
     },
     {
         "domain": "Network",
         "description": "Network domain allows tracking network activities of the page. It exposes information about http, file, data and other requests and responses, their headers, bodies, timing, etc.",
         "dependencies": ["Runtime", "Security"],
         "types": [
             {
                 "id": "LoaderId",
@@ skipping 3572 matching lines @@
                 "name": "accepted",
                 "description": "Informs that port was successfully bound and got a specified connection id.",
                 "parameters": [
                     {"name": "port", "type": "integer", "description": "Port number that was successfully bound." },
                     {"name": "connectionId", "type": "string", "description": "Connection id to be used." }
                 ]
             }
         ]
     }]
 }