[DevTools] Add power profiler and power overview in timeline panel.

Source/devtools/devtools.gypi

 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #         * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #         * Redistributions in binary form must reproduce the above
@@ skipping 105 matching lines @@
             'front_end/ObjectPopoverHelper.js',
             'front_end/ObjectPropertiesSection.js',
             'front_end/OverridesSupport.js',
             'front_end/OverviewGrid.js',
             'front_end/PaintProfiler.js',
             'front_end/Panel.js',
             'front_end/ParsedURL.js',
             'front_end/Placard.js',
             'front_end/Platform.js',
             'front_end/Popover.js',
+            'front_end/PowerProfiler.js',
             'front_end/PresentationConsoleMessageHelper.js',
             'front_end/Progress.js',
             'front_end/ProgressIndicator.js',
             'front_end/PropertiesSection.js',
             'front_end/RemoteObject.js',
             'front_end/Resource.js',
             'front_end/ResourceScriptMapping.js',
             'front_end/ResourceTreeModel.js',
             'front_end/ResourceType.js',
             'front_end/ResourceUtils.js',
@@ skipping 177 matching lines @@
             'front_end/TimelineFrameModel.js',
             'front_end/TimelineModel.js',
             'front_end/TimelinePresentationModel.js',
             'front_end/TimelineOverviewPane.js',
             'front_end/TimelineEventOverview.js',
             'front_end/TimelineFlameChart.js',
             'front_end/TimelineFrameOverview.js',
             'front_end/TimelineMemoryOverview.js',
             'front_end/TimelineUIUtils.js',
             'front_end/TimelineView.js',
+            'front_end/TimelinePowerOverview.js',
             'front_end/TimelinePanel.js',
         ],
         'devtools_profiles_js_files': [
             'front_end/BottomUpProfileDataGridTree.js',
             'front_end/CPUProfileView.js',
             'front_end/HeapSnapshotCommon.js',
             'front_end/HeapSnapshotDataGrids.js',
             'front_end/HeapSnapshotGridNodes.js',
             'front_end/HeapSnapshotProxy.js',
             'front_end/HeapSnapshotView.js',
@@ skipping 145 matching lines @@
             'front_end/TempStorageSharedWorker.js',
         ],
         'devtools_script_formatter_worker_js_files': [
             'front_end/CSSFormatter.js',
             'front_end/JavaScriptFormatter.js',
             'front_end/ScriptFormatterWorker.js',
             'front_end/utilities.js',
         ],
     },
 }