DevTools: enable layers pane outside of experiements.

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 4a1148feeb90948948eef7d8e79fd2808417cc86..c8da96d65cb4d6cd651eb3c509df79ff32888918 100644
--- a/third_party/WebKit/Source/devtools/front_end/main/Main.js
+++ b/third_party/WebKit/Source/devtools/front_end/main/Main.js
@@ -86,7 +86,6 @@ WebInspector.Main.prototype = {
         Runtime.experiments.register("continueToFirstInvocation", "Continue to first invocation", true);
         Runtime.experiments.register("emptySourceMapAutoStepping", "Empty sourcemap auto-stepping");
         Runtime.experiments.register("inputEventsOnTimelineOverview", "Input events on Timeline overview", true);
-        Runtime.experiments.register("layersPanel", "Layers panel");
         Runtime.experiments.register("layoutEditor", "Layout editor", true);
         Runtime.experiments.register("inspectTooltip", "Dark inspect element tooltip");
         Runtime.experiments.register("liveSASS", "Live SASS");
@@ -108,10 +107,6 @@ WebInspector.Main.prototype = {
         if (InspectorFrontendHost.isUnderTest()) {
             var testPath = JSON.parse(prefs["testPath"] || "\"\"");
             // Enable experiments for testing.
-            if (testPath.indexOf("layers/") !== -1)
-                Runtime.experiments.enableForTest("layersPanel");
-            if (testPath.indexOf("timeline/") !== -1 || testPath.indexOf("layers/") !== -1)
-                Runtime.experiments.enableForTest("layersPanel");
             if (testPath.indexOf("security/") !== -1)
                 Runtime.experiments.enableForTest("securityPanel");
             if (testPath.indexOf("accessibility/") !== -1)