DevTools: Implement extensions-based shortcut bindings

Source/devtools/front_end/ModuleManager.js

Index: Source/devtools/front_end/ModuleManager.js
diff --git a/Source/devtools/front_end/ModuleManager.js b/Source/devtools/front_end/ModuleManager.js
index 603572b99d4c365df6e4412278b7f1c82edd76e8..7724d15c4131560004db64a0d0b84c03d57ff23d 100644
--- a/Source/devtools/front_end/ModuleManager.js
+++ b/Source/devtools/front_end/ModuleManager.js
@@ -412,4 +412,19 @@ WebInspector.Revealer.prototype = {
     reveal: function(object) {}
 }
 
+/**
+ * @interface
+ */
+WebInspector.ActionDelegate = function()
+{
+}
+
+WebInspector.ActionDelegate.prototype = {
+    /**
+     * @param {!Event} event
+     * @return {boolean}
+     */
+    handleAction: function(event) {}
+}
+
 WebInspector.moduleManager = new WebInspector.ModuleManager(allDescriptors);