DevTools: kill WI.IsolatedFileSystemManager FileSystemsLoaded event

third_party/WebKit/Source/devtools/front_end/bindings/NetworkMapping.js

Index: third_party/WebKit/Source/devtools/front_end/bindings/NetworkMapping.js
diff --git a/third_party/WebKit/Source/devtools/front_end/bindings/NetworkMapping.js b/third_party/WebKit/Source/devtools/front_end/bindings/NetworkMapping.js
index 6aa4d3eec2f244c1cd4051488980b66caff8daca..399a348a934231c4eb5fa88750d4150db5e5c9f7 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/NetworkMapping.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/NetworkMapping.js
@@ -17,24 +17,29 @@ WebInspector.NetworkMapping = function(targetManager, workspace, fileSystemWorks
     this._fileSystemMapping = fileSystemMapping;
     InspectorFrontendHost.events.addEventListener(InspectorFrontendHostAPI.Events.RevealSourceLine, this._revealSourceLine, this);
 
-    // For now, following block is here primarily for testing since in the real life, network manager is created early enough to capture those events.
     var fileSystemManager = fileSystemWorkspaceBinding.fileSystemManager();
-    for (var fileSystem of fileSystemManager.fileSystems())
-        this._addMappingsForFilesystem(fileSystem);
-    if (fileSystemManager.fileSystemsLoaded())
-        this._fileSystemsLoaded();
-
     this._eventListeners = [
         fileSystemManager.addEventListener(WebInspector.IsolatedFileSystemManager.Events.FileSystemAdded, this._fileSystemAdded, this),
         fileSystemManager.addEventListener(WebInspector.IsolatedFileSystemManager.Events.FileSystemRemoved, this._fileSystemRemoved, this),
-        fileSystemManager.addEventListener(WebInspector.IsolatedFileSystemManager.Events.FileSystemsLoaded, this._fileSystemsLoaded, this),
         this._fileSystemMapping.addEventListener(WebInspector.FileSystemMapping.Events.FileMappingAdded, this._fileSystemMappingChanged, this),
         this._fileSystemMapping.addEventListener(WebInspector.FileSystemMapping.Events.FileMappingRemoved, this._fileSystemMappingChanged, this)
     ];
+
+    fileSystemManager.waitForFileSystems()
+        .then(this._fileSystemsLoaded.bind(this));
 }
 
 WebInspector.NetworkMapping.prototype = {
     /**
+     * @param {!Array<!WebInspector.IsolatedFileSystem>} fileSystems
+     */
+    _fileSystemsLoaded: function(fileSystems)
+    {
+        for (var fileSystem of fileSystems)
+            this._addMappingsForFilesystem(fileSystem);
+    },
+
+    /**
      * @param {!WebInspector.Event} event
      */
     _fileSystemAdded: function(event)
@@ -238,14 +243,9 @@ WebInspector.NetworkMapping.prototype = {
         this._workspace.addEventListener(WebInspector.Workspace.Events.UISourceCodeAdded, listener, this);
     },
 
-    _fileSystemsLoaded: function()
-    {
-        this._fileSystemsReady = true;
-    },
-
     _fileSystemMappingChanged: function()
     {
-        if (!this._fileSystemsReady || this._addingFileSystem)
+        if (this._addingFileSystem)
             return;
         this._targetManager.suspendAndResumeAllTargets();
     },