DevTools: allow injecting stylesheets as themes.

Source/devtools/front_end/ExtensionAPI.js

 /*
  * Copyright (C) 2012 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 58 matching lines @@
         TimelineEventRecorded: "timeline-event-recorded",
         ViewShown: "view-shown-",
         ViewHidden: "view-hidden-"
     };
 
     apiPrivate.Commands = {
         AddAuditCategory: "addAuditCategory",
         AddAuditResult: "addAuditResult",
         AddConsoleMessage: "addConsoleMessage",
         AddRequestHeaders: "addRequestHeaders",
+        ApplyStyleSheet: "applyStyleSheet",
         CreatePanel: "createPanel",
         CreateSidebarPane: "createSidebarPane",
         CreateStatusBarButton: "createStatusBarButton",
         EvaluateOnInspectedPage: "evaluateOnInspectedPage",
         ForwardKeyboardEvent: "_forwardKeyboardEvent",
         GetConsoleMessages: "getConsoleMessages",
         GetHAR: "getHAR",
         GetPageResources: "getPageResources",
         GetRequestContent: "getRequestContent",
         GetResourceContent: "getResourceContent",
+        InspectedURLChanged: "inspectedURLChanged",
+        OpenResource: "openResource",
         Reload: "Reload",
         Subscribe: "subscribe",
         SetOpenResourceHandler: "setOpenResourceHandler",
         SetResourceContent: "setResourceContent",
         SetSidebarContent: "setSidebarContent",
         SetSidebarHeight: "setSidebarHeight",
         SetSidebarPage: "setSidebarPage",
         ShowPanel: "showPanel",
         StopAuditCategoryRun: "stopAuditCategoryRun",
-        OpenResource: "openResource",
         Unsubscribe: "unsubscribe",
         UpdateAuditProgress: "updateAuditProgress",
-        UpdateButton: "updateButton",
-        InspectedURLChanged: "inspectedURLChanged"
+        UpdateButton: "updateButton"
     };
 }
 
 function injectedExtensionAPI(injectedScriptId)
 {
 
 var apiPrivate = {};
 
 defineCommonExtensionSymbols(apiPrivate);
 
@@ skipping 162 matching lines @@
         elements: new ElementsPanel(),
         sources: new SourcesPanel(),
     };
 
     function panelGetter(name)
     {
         return panels[name];
     }
     for (var panel in panels)
         this.__defineGetter__(panel, panelGetter.bind(null, panel));
+    this.applyStyleSheet = function(styleSheet) { extensionServer.sendRequest({ command: commands.ApplyStyleSheet, styleSheet: styleSheet }); };
 }
 
 Panels.prototype = {
     create: function(title, icon, page, callback)
     {
         var id = "extension-panel-" + extensionServer.nextObjectId();
         var request = {
             command: commands.CreatePanel,
             id: id,
             title: title,
@@ skipping 614 matching lines @@
 {
     return "(function(injectedScriptId){ " +
         "var extensionServer;" +
         defineCommonExtensionSymbols.toString() + ";" +
         injectedExtensionAPI.toString() + ";" +
         buildPlatformExtensionAPI(extensionInfo) + ";" +
         "platformExtensionAPI(injectedExtensionAPI(injectedScriptId));" +
         "return {};" +
         "})";
 }