DevTools: lighten the workspaces settings ui a bit.

third_party/WebKit/Source/devtools/front_end/settings/SettingsScreen.js

Index: third_party/WebKit/Source/devtools/front_end/settings/SettingsScreen.js
diff --git a/third_party/WebKit/Source/devtools/front_end/settings/SettingsScreen.js b/third_party/WebKit/Source/devtools/front_end/settings/SettingsScreen.js
index ca1dcafedc7244c74bdcf12ec3b8d6810d6c4d1d..5c8d25a41dbb19de305737043db91a46fa8104c0 100644
--- a/third_party/WebKit/Source/devtools/front_end/settings/SettingsScreen.js
+++ b/third_party/WebKit/Source/devtools/front_end/settings/SettingsScreen.js
@@ -287,6 +287,16 @@ Settings.WorkspaceSettingsTab = class extends Settings.SettingsTab {
     folderExcludePatternInput.classList.add('folder-exclude-pattern');
     this.containerElement.appendChild(folderExcludePatternInput);
 
+    if (Runtime.experiments.isEnabled('persistence2')) {
+      var div = this.containerElement.createChild('div', 'settings-info-message');
+      div.createTextChild(
+          Common.UIString('Mappings are inferred automatically via the \'Persistence 2.0\' experiment. Please '));
+      div.appendChild(UI.createExternalLink(
+          'https://bugs.chromium.org/p/chromium/issues/entry?template=Defect%20report%20from%20user&components=Platform%3EDevTools%3EAuthoring&comment=DevTools%20failed%20to%20link%20network%20resource%20to%20filesystem.%0A%0APlatform%3A%20%3CLinux%2FWin%2FMac%3E%0AChrome%20version%3A%20%3Cyour%20chrome%20version%3E%0A%0AWhat%20are%20the%20details%20of%20your%20project%3F%0A-%20Source%20code%20(if%20any)%3A%20http%3A%2F%2Fgithub.com%2Fexample%2Fexample%0A-%20Build%20System%3A%20gulp%2Fgrunt%2Fwebpack%2Frollup%2F...%0A-%20HTTP%20server%3A%20node%20HTTP%2Fnginx%2Fapache...%0A%0AAssets%20failed%20to%20link%20(or%20incorrectly%20linked)%3A%0A1.%0A2.%0A3.%0A%0AIf%20possible%2C%20please%20attach%20a%20screenshot%20of%20network%20sources%20navigator%20which%20should%0Ashow%20which%20resources%20failed%20to%20map',
+          Common.UIString('report')));
+      div.createTextChild(Common.UIString(' any bugs.'));
+    }
+
     this._fileSystemsListContainer = this.containerElement.createChild('div', '');
 
     this.containerElement.appendChild(