DevTools: support inplace formatting for workspace scripts/documents.

Source/devtools/front_end/sources/InplaceFormatterEditorAction.js

Index: Source/devtools/front_end/sources/InplaceFormatterEditorAction.js
diff --git a/Source/devtools/front_end/sources/InplaceFormatterEditorAction.js b/Source/devtools/front_end/sources/InplaceFormatterEditorAction.js
index cf36944467b62a7c689cba411412e61b70fd094c..b0ab997f956b0562c46ad54301870854efe0742c 100644
--- a/Source/devtools/front_end/sources/InplaceFormatterEditorAction.js
+++ b/Source/devtools/front_end/sources/InplaceFormatterEditorAction.js
@@ -68,6 +68,8 @@ WebInspector.InplaceFormatterEditorAction.prototype = {
     {
         if (!uiSourceCode)
             return false;
+        if (uiSourceCode.project().type() === WebInspector.projectTypes.FileSystem)
+            return true;
         return uiSourceCode.contentType() === WebInspector.resourceTypes.Stylesheet
             || uiSourceCode.project().type() === WebInspector.projectTypes.Snippets;
     },