DevTools: InspectorTest.TestFileSystem to support Entry.remove

third_party/WebKit/LayoutTests/http/tests/inspector/isolated-filesystem-test.js

 var initialize_IsolatedFileSystemTest = function() {
 
 InspectorFrontendHost.isolatedFileSystem = function(name)
 {
     return InspectorTest.TestFileSystem._instances[name];
 }
 
 InspectorTest.TestFileSystem = function(fileSystemPath)
 {
-    this.root = new InspectorTest.TestFileSystem.Entry("", true, null);
+    this.root = new InspectorTest.TestFileSystem.Entry(this, "", true, null);
     this.fileSystemPath = fileSystemPath;
 }
 
 InspectorTest.TestFileSystem._instances = {};
 
 InspectorTest.TestFileSystem.prototype = {
     reportCreated: function(callback)
     {
         var fileSystemPath = this.fileSystemPath;
         InspectorTest.TestFileSystem._instances[this.fileSystemPath] = this;
@@ skipping 22 matching lines @@
 
     addFileMapping: function(urlPrefix, pathPrefix)
     {
         var fileSystemMapping = new WebInspector.FileSystemMapping();
         fileSystemMapping.addFileSystem(this.fileSystemPath);
         fileSystemMapping.addFileMapping(this.fileSystemPath, urlPrefix, pathPrefix);
         WebInspector.fileSystemMapping._loadFromSettings();
     }
 }
 
-InspectorTest.TestFileSystem.Entry = function(name, isDirectory, parent)
+InspectorTest.TestFileSystem.Entry = function(fileSystem, name, isDirectory, parent)
 {
+    this._fileSystem = fileSystem;
     this.name = name;
     this._children = [];
     this._childrenMap = {};
     this.isDirectory = isDirectory;
     this._timestamp = 1000000;
     this._parent = parent;
 }
 
 InspectorTest.TestFileSystem.Entry.prototype = {
     get fullPath()
     {
         return this.parent ? this.parent.fullPath  + "/" + this.name : "";
     },
 
+    remove: function(success, failure)
+    {
+        this._parent._removeChild(this, success, failure);
+    },
+
+    _removeChild: function(child, success, failure)
+    {
+        var index = this._children.indexOf(child);
+        if (index === -1) {
+            failure("Failed to remove file: file not found.");
+            return;
+        }
+        var fullPath = this._fileSystem.fileSystemPath + child.fullPath;
+        this._children.splice(index, 1);
+        delete this._childrenMap[child.name];
+        child.parent = null;
+        InspectorFrontendHost.events.dispatchEventToListeners(InspectorFrontendHostAPI.Events.FileSystemFilesChanged, [fullPath]);
+        success();
+    },
+
     mkdir: function(name)
     {
-        var child = new InspectorTest.TestFileSystem.Entry(name, true, this);
+        var child = new InspectorTest.TestFileSystem.Entry(this._fileSystem, name, true, this);
         this._childrenMap[name] = child;
         this._children.push(child);
         child.parent = this;
         return child;
     },
 
     addFile: function(name, content)
     {
-        var child = new InspectorTest.TestFileSystem.Entry(name, false, this);
+        var child = new InspectorTest.TestFileSystem.Entry(this._fileSystem, name, false, this);
         this._childrenMap[name] = child;
         this._children.push(child);
         child.parent = this;
         child.content = new Blob([content], {type: 'text/plain'});
+        return child;
     },
 
     createReader: function()
     {
         return new InspectorTest.TestFileSystem.Reader(this._children);
     },
 
     createWriter: function(success, failure)
     {
         success(new InspectorTest.TestFileSystem.Writer(this));
@@ skipping 83 matching lines @@
     truncate: function(num)
     {
         this._entry._timestamp += this._modificationTimesDelta;
         this._entry.content = this._entry.content.slice(0, num);
         if (this.onwriteend)
             this.onwriteend();
     }
 }
 
 };