DevTools: straw man adaptable implementation.

third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js

Index: third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js
diff --git a/third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js b/third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js
index 5b988e9ef007f84be2540b5730cbb3224d7d61d1..f30bea1741433cf41deecda0305b7d0773add5da 100644
--- a/third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js
+++ b/third_party/WebKit/Source/devtools/front_end/ui/ContextMenu.js
@@ -301,6 +301,7 @@ WebInspector.ContextMenu = function(event, useSoftMenu, x, y)
     WebInspector.ContextSubMenuItem.call(this, this, "");
     /** @type {!Array.<!Promise.<!Array.<!WebInspector.ContextMenu.Provider>>>} */
     this._pendingPromises = [];
+    this._adapterPromises = [];
     /** @type {!Array.<!Promise.<!Object>>} */
     this._pendingTargets = [];
     this._event = event;
@@ -352,8 +353,14 @@ WebInspector.ContextMenu.prototype = {
 
     show: function()
     {
-        Promise.all(this._pendingPromises).then(populateAndShow.bind(this));
+        Promise.all(this._adapterPromises).then(this._showWithProviders.bind(this));
         WebInspector.ContextMenu._pendingMenu = this;
+        this._event.consume(true);
+    },
+
+    _showWithProviders: function()
+    {
+        Promise.all(this._pendingPromises).then(populateAndShow.bind(this));
 
         /**
          * @param {!Array.<!Array.<!WebInspector.ContextMenu.Provider>>} appendCallResults
@@ -381,8 +388,6 @@ WebInspector.ContextMenu.prototype = {
             this._pendingTargets = [];
             this._innerShow();
         }
-
-        this._event.consume(true);
     },
 
     discard: function()
@@ -458,6 +463,19 @@ WebInspector.ContextMenu.prototype = {
     {
         this._pendingPromises.push(self.runtime.instancesPromise(WebInspector.ContextMenu.Provider, target));
         this._pendingTargets.push(target);
+
+        this._adapterPromises.push(self.runtime.adapt(target).then(appendForAdapted.bind(this)));
+        /**
+         * @param {!Array<!Object>} adapted
+         * @this {WebInspector.ContextSubMenuItem}
+         */
+        function appendForAdapted(adapted)
+        {
+            for (var object of adapted) {
+                this._pendingPromises.push(self.runtime.instancesPromise(WebInspector.ContextMenu.Provider, object));
+                this._pendingTargets.push(object);
+            }
+        }
     },
 
     __proto__: WebInspector.ContextSubMenuItem.prototype