DevTools: bake generic css files into the concatenated one.

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 33 matching lines @@
         'devtools_core_base_files': [
             'front_end/inspector.html',
             'front_end/Tests.js',
             'front_end/InspectorFrontendAPI.js',
             'front_end/InspectorFrontendEventSink.js',
             'front_end/InspectorFrontendHostStub.js',
             'front_end/ScreencastView.js',
             'front_end/TestController.js',
             'front_end/dialog.css',
             'front_end/inspector.css',
-            'front_end/tabbedPane.css',
             'front_end/inspectorSyntaxHighlight.css',
             'front_end/popover.css',
+            'front_end/sidebarPane.css',
+            'front_end/splitView.css',
+            'front_end/suggestBox.css',
+            'front_end/tabbedPane.css',
             '<@(devtools_main_js_files)',
             '<@(devtools_standalone_files)',
         ],
         'devtools_common_js_files': [
             'front_end/common/Color.js',
             'front_end/common/CompletionDictionary.js',
             'front_end/common/DOMExtension.js',
             'front_end/common/Geometry.js',
             'front_end/common/MessageSink.js',
             'front_end/common/ModuleManager.js',
@@ skipping 174 matching lines @@
         'all_devtools_files': [
             '<@(devtools_core_js_files)',
             '<@(devtools_modules_js_files)',
             '<@(devtools_cm_css_files)',
             '<@(devtools_cm_js_files)',
             '<@(devtools_module_json_files)',
         ],
         'devtools_standalone_files': [
             'front_end/accelerometer.css',
             'front_end/auditsPanel.css',
-            'front_end/breadcrumbList.css',
             'front_end/breakpointsList.css',
             'front_end/cmdevtools.css',
             'front_end/dataGrid.css',
             'front_end/devicesView.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',
             'front_end/networkLogView.css',
             'front_end/networkPanel.css',
             'front_end/overrides.css',
             'front_end/panelEnablerView.css',
             'front_end/profilesPanel.css',
             'front_end/resourceView.css',
             'front_end/resourcesPanel.css',
             'front_end/responsiveDesignView.css',
             'front_end/revisionHistory.css',
             'front_end/screencastView.css',
-            'front_end/sidebarPane.css',
             'front_end/sourcesPanel.css',
             'front_end/sourcesView.css',
             'front_end/spectrum.css',
-            'front_end/splitView.css',
-            'front_end/suggestBox.css',
             'front_end/timelinePanel.css',
             'front_end/canvasProfiler.css',
             'front_end/layersPanel.css',
         ],
         'devtools_console_js_files': [
             'front_end/console/ConsolePanel.js',
             'front_end/console/ConsoleView.js',
             'front_end/console/ConsoleViewMessage.js',
         ],
         'devtools_search_js_files': [
@@ skipping 279 matching lines @@
             'front_end/temp_storage_shared_worker/TempStorageSharedWorker.js',
         ],
         'devtools_script_formatter_worker_js_files': [
             'front_end/script_formatter_worker/CSSFormatter.js',
             'front_end/script_formatter_worker/JavaScriptFormatter.js',
             'front_end/script_formatter_worker/ScriptFormatterWorker.js',
             'front_end/common/utilities.js',
         ],
     },
 }