Surface SCT (Signed Certificate Timestamp) counts in the Security panel.

third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
index a4a945f95afecc802d23fc98524930d7ae399b36..bad478e748b5e12f92420121cadf2e3dc4ea816c 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/NetworkManager.js
@@ -136,6 +136,40 @@ WebInspector.NetworkManager.prototype = {
         return promise;
     },
 
+    /**
+     * @param {!NetworkAgent.CertificateValidationDetails} validationDetails
+     * @return {!Promise<string>}
+     */
+    certificateTransparencySummaryPromise: function(validationDetails)
+    {
+        /**
+         * @this {WebInspector.NetworkManager}
+         * @param {function(string)} resolve
+         * @param {function()} reject
+         */
+        function executor(resolve, reject)
+        {
+            /**
+             * @param {?Protocol.Error} error
+             * @param {string} summary
+             */
+            function innerCallback(error, summary)
+            {
+                if (error) {
+                    console.error("Unable to get certificate transparency summary from the browser.");
+                    reject();
+                } else {
+                    resolve(summary);
+                }
+            }
+            this._networkAgent.getCertificateTransparencySummary(validationDetails.isValidEv, validationDetails.numUnknownScts, validationDetails.numInvalidScts, validationDetails.numValidScts, innerCallback);
+        }
+
+        var promise = new Promise(executor.bind(this));
+
+        return promise;
+    },
+
     __proto__: WebInspector.SDKModel.prototype
 }