DevTools: [CSS] remove CSS Regions experiment from DevTools.

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 187 matching lines @@
             '<@(devtools_standalone_files)',
         ],
         'devtools_standalone_files': [
             'front_end/accelerometer.css',
             'front_end/auditsPanel.css',
             'front_end/breadcrumbList.css',
             'front_end/breakpointsList.css',
             'front_end/buildSystemOnly.js',
             'front_end/cm/cmdevtools.css',
             'front_end/cm/codemirror.css',
-            'front_end/cssNamedFlows.css',
             'front_end/dataGrid.css',
             'front_end/elementsPanel.css',
             'front_end/filter.css',
             'front_end/filteredItemSelectionDialog.css',
             'front_end/flameChart.css',
             'front_end/heapProfiler.css',
             'front_end/helpScreen.css',
             'front_end/indexedDBViews.css',
             'front_end/inspectorCommon.css',
             'front_end/navigatorView.css',
@@ skipping 10 matching lines @@
             'front_end/sourcesPanel.css',
             'front_end/sourcesView.css',
             'front_end/spectrum.css',
             'front_end/splitView.css',
             'front_end/textPrompt.css',
             'front_end/timelinePanel.css',
             'front_end/canvasProfiler.css',
             'front_end/layersPanel.css',
         ],
         'devtools_elements_js_files': [
-            'front_end/CSSNamedFlowCollectionsView.js',
-            'front_end/CSSNamedFlowView.js',
             'front_end/DOMSyntaxHighlighter.js',
             'front_end/ElementsTreeOutline.js',
             'front_end/ElementsPanel.js',
             'front_end/EventListenersSidebarPane.js',
             'front_end/MetricsSidebarPane.js',
             'front_end/OverridesView.js',
             'front_end/PlatformFontsSidebarPane.js',
             'front_end/PropertiesSidebarPane.js',
             'front_end/RenderingOptionsView.js',
             'front_end/StylesSidebarPane.js',
@@ skipping 136 matching lines @@
         'devtools_image_files': [
             'front_end/Images/addIcon.png',
             'front_end/Images/applicationCache.png',
             'front_end/Images/back.png',
             'front_end/Images/breakpoint.png',
             'front_end/Images/breakpoint_2x.png',
             'front_end/Images/breakpointConditional.png',
             'front_end/Images/breakpointConditional_2x.png',
             'front_end/Images/checker.png',
             'front_end/Images/cookie.png',
-            'front_end/Images/namedFlowOverflow.png',
             'front_end/Images/database.png',
             'front_end/Images/databaseTable.png',
             'front_end/Images/deleteIcon.png',
             'front_end/Images/domain.png',
             'front_end/Images/forward.png',
             'front_end/Images/fileSystem.png',
             'front_end/Images/frame.png',
             'front_end/Images/graphLabelCalloutLeft.png',
             'front_end/Images/graphLabelCalloutRight.png',
             'front_end/Images/indexedDB.png',
             'front_end/Images/indexedDBObjectStore.png',
             'front_end/Images/indexedDBIndex.png',
             'front_end/Images/localStorage.png',
             'front_end/Images/navigationControls.png',
             'front_end/Images/navigationControls_2x.png',
             'front_end/Images/paneAddButtons.png',
             'front_end/Images/paneElementStateButtons.png',
             'front_end/Images/paneFilterButtons.png',
             'front_end/Images/paneRefreshButtons.png',
             'front_end/Images/paneSettingsButtons.png',
             'front_end/Images/popoverArrows.png',
             'front_end/Images/popoverBackground.png',
             'front_end/Images/profileGroupIcon.png',
             'front_end/Images/profileIcon.png',
             'front_end/Images/profileSmallIcon.png',
             'front_end/Images/radioDot.png',
-            'front_end/Images/regionEmpty.png',
-            'front_end/Images/regionFit.png',
-            'front_end/Images/regionOverset.png',
             'front_end/Images/resourceCSSIcon.png',
             'front_end/Images/resourceDocumentIcon.png',
             'front_end/Images/resourceDocumentIconSmall.png',
             'front_end/Images/resourceJSIcon.png',
             'front_end/Images/resourcePlainIcon.png',
             'front_end/Images/resourcePlainIconSmall.png',
             'front_end/Images/resourcesTimeGraphIcon.png',
             'front_end/Images/searchNext.png',
             'front_end/Images/searchPrev.png',
             'front_end/Images/sessionStorage.png',
@@ skipping 34 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',
         ],
     },
 }