DevTools: split Sources tree into Network and Filesystem trees.

third_party/WebKit/Source/devtools/front_end/main/Main.js

Index: third_party/WebKit/Source/devtools/front_end/main/Main.js
diff --git a/third_party/WebKit/Source/devtools/front_end/main/Main.js b/third_party/WebKit/Source/devtools/front_end/main/Main.js
index e5db6c5da006cc898eaeba93857942ec8f28ffb9..2f6930cc496b0529a1cd8ff39a059c7e1f4f3203 100644
--- a/third_party/WebKit/Source/devtools/front_end/main/Main.js
+++ b/third_party/WebKit/Source/devtools/front_end/main/Main.js
@@ -91,6 +91,7 @@ WebInspector.Main.prototype = {
         Runtime.experiments.register("inspectTooltip", "Dark inspect element tooltip");
         Runtime.experiments.register("liveSASS", "Live SASS");
         Runtime.experiments.register("nodeDebugging", "Node debugging", true);
+        Runtime.experiments.register("persistence2", "Persistence 2.0", true);
         Runtime.experiments.register("privateScriptInspection", "Private script inspection");
         Runtime.experiments.register("requestBlocking", "Request blocking", true);
         Runtime.experiments.register("resolveVariableNames", "Resolve variable names");