Revert of Revert of DevTools: Introduce module initializers

Source/devtools/front_end/timeline/_module.js

Index: Source/devtools/front_end/timeline/_module.js
diff --git a/Source/devtools/front_end/timeline/_module.js b/Source/devtools/front_end/timeline/_module.js
new file mode 100644
index 0000000000000000000000000000000000000000..8be88e2c9ce71480473a87dc7d84a83cabd389f3
--- /dev/null
+++ b/Source/devtools/front_end/timeline/_module.js
@@ -0,0 +1,30 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+importScript("CountersGraph.js");
+importScript("Layers3DView.js");
+importScript("MemoryCountersGraph.js");
+importScript("TimelineModel.js");
+importScript("TimelineModelImpl.js");
+importScript("TimelineJSProfile.js");
+importScript("TimelineOverviewPane.js");
+importScript("TimelinePresentationModel.js");
+importScript("TracingTimelineModel.js");
+importScript("TimelineFrameModel.js");
+importScript("TimelineEventOverview.js");
+importScript("TimelineFrameOverview.js");
+importScript("TimelineMemoryOverview.js");
+importScript("TimelinePowerGraph.js");
+importScript("TimelinePowerOverview.js");
+importScript("TimelineFlameChart.js");
+importScript("TimelineUIUtils.js");
+importScript("TimelineUIUtilsImpl.js");
+importScript("TimelineView.js");
+importScript("TimelineLayersView.js");
+importScript("TimelinePaintProfilerView.js");
+importScript("TracingModel.js");
+importScript("TracingTimelineUIUtils.js");
+importScript("TransformController.js");
+importScript("PaintProfilerView.js");
+importScript("TimelinePanel.js");