DevTools: straw man adaptable implementation.

third_party/WebKit/Source/devtools/front_end/Runtime.js

Index: third_party/WebKit/Source/devtools/front_end/Runtime.js
diff --git a/third_party/WebKit/Source/devtools/front_end/Runtime.js b/third_party/WebKit/Source/devtools/front_end/Runtime.js
index 9056bd16ad155f40503f0416a86090019c83bd32..f27cccdaab8ed22a728c185730d0152a42dc708a 100644
--- a/third_party/WebKit/Source/devtools/front_end/Runtime.js
+++ b/third_party/WebKit/Source/devtools/front_end/Runtime.js
@@ -557,6 +557,27 @@ Runtime.prototype = {
                 this._cachedTypeClasses[typeName] = /** @type function(new:Object) */(object);
         }
         return this._cachedTypeClasses[typeName] || null;
+    },
+
+    /**
+     * @param {!Object} object
+     * @return {!Promise<!Array<!Object>>}
+     */
+    adapt: function(object)
+    {
+        return this.instancesPromise(Runtime.Adapter, object).then(processAdapters);
+
+        /**
+         * @param {!Array<!Runtime.Adapter>} adapters
+         * @return {!Promise<!Array<!Object>>}
+         */
+        function processAdapters(adapters)
+        {
+            var promises = [];
+            for (var adapter of adapters)
+                promises.push(adapter.adapt(object));
+            return /** @type {!Promise<!Array<!Object>>} */ (Runtime._some(promises));
+        }
     }
 }
 
@@ -1076,6 +1097,19 @@ Runtime.Experiment.prototype = {
     }
 }
 
+/**
+ * @interface
+ */
+Runtime.Adapter = function() { }
+
+Runtime.Adapter.prototype = {
+    /**
+     * @param {!Object} from
+     * @return {!Promise<?Object>}
+     */
+    adapt: function(from) { }
+}
+
 {(function parseQueryParameters()
 {
     var queryParams = location.search;