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 80a696d65b176d4a04703a5b3e8681d93c6af18c..ae1e69802afcf34d9d1deda7b260938f36f99116 100644
--- a/Source/devtools/front_end/ModuleManager.js
+++ b/Source/devtools/front_end/ModuleManager.js
@@ -400,4 +400,19 @@ WebInspector.Revealer.prototype = {
     reveal: function(object) {}
 }
 
+/**
+ * @interface
+ */
+WebInspector.ActionDelegate = function()
+{
+}
+
+WebInspector.ActionDelegate.prototype = {
+    /**
+     * @param {!KeyboardEvent=} keyEvent
+     * @return {boolean}
+     */
+    handleAction: function(keyEvent) {}
+}
+
 WebInspector.moduleManager = new WebInspector.ModuleManager(allDescriptors);