DevTools: introduce the Clear storage pane in the resources panel.

third_party/WebKit/Source/devtools/front_end/resources/DOMStorageModel.js

 /*
  * Copyright (C) 2008 Nokia Inc.  All rights reserved.
  * Copyright (C) 2013 Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 126 matching lines @@
         this._agent.enable();
 
         var securityOrigins = this.target().resourceTreeModel.securityOrigins();
         for (var i = 0; i < securityOrigins.length; ++i)
             this._addOrigin(securityOrigins[i]);
 
         this._enabled = true;
     },
 
     /**
+     * @param {string} origin
+     */
+    clearForOrigin: function(origin)
+    {
+        if (!this._enabled)
+            return;
+        this._removeOrigin(origin);
+        this._addOrigin(origin);
+    },
+
+    /**
      * @param {!WebInspector.Event} event
      */
     _securityOriginAdded: function(event)
     {
         this._addOrigin(/** @type {string} */ (event.data));
     },
 
-
     /**
      * @param {string} securityOrigin
      */
     _addOrigin: function(securityOrigin)
     {
         var localStorageKey = this._storageKey(securityOrigin, true);
         console.assert(!this._storages[localStorageKey]);
         var localStorage = new WebInspector.DOMStorage(this, securityOrigin, true);
         this._storages[localStorageKey] = localStorage;
         this.dispatchEventToListeners(WebInspector.DOMStorageModel.Events.DOMStorageAdded, localStorage);
 
         var sessionStorageKey = this._storageKey(securityOrigin, false);
         console.assert(!this._storages[sessionStorageKey]);
         var sessionStorage = new WebInspector.DOMStorage(this, securityOrigin, false);
         this._storages[sessionStorageKey] = sessionStorage;
         this.dispatchEventToListeners(WebInspector.DOMStorageModel.Events.DOMStorageAdded, sessionStorage);
     },
 
     /**
      * @param {!WebInspector.Event} event
      */
     _securityOriginRemoved: function(event)
     {
-        var securityOrigin = /** @type {string} */ (event.data);
+        this._removeOrigin(/** @type {string} */ (event.data));
+    },
+
+    /**
+     * @param {string} securityOrigin
+     */
+    _removeOrigin: function(securityOrigin)
+    {
         var localStorageKey = this._storageKey(securityOrigin, true);
         var localStorage = this._storages[localStorageKey];
         console.assert(localStorage);
         delete this._storages[localStorageKey];
         this.dispatchEventToListeners(WebInspector.DOMStorageModel.Events.DOMStorageRemoved, localStorage);
 
         var sessionStorageKey = this._storageKey(securityOrigin, false);
         var sessionStorage = this._storages[sessionStorageKey];
         console.assert(sessionStorage);
         delete this._storages[sessionStorageKey];
@@ skipping 151 matching lines @@
  * @param {!WebInspector.Target} target
  * @return {!WebInspector.DOMStorageModel}
  */
 WebInspector.DOMStorageModel.fromTarget = function(target)
 {
     if (!target[WebInspector.DOMStorageModel._symbol])
         target[WebInspector.DOMStorageModel._symbol] = new WebInspector.DOMStorageModel(target);
 
     return target[WebInspector.DOMStorageModel._symbol];
 }