webui: minimize webui flicker.

extensions/browser/renderer_startup_helper.cc

 // 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.
 
 #include "extensions/browser/renderer_startup_helper.h"
 
 #include "base/values.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
@@ skipping 25 matching lines @@
     const content::NotificationDetails& details) {
   switch (type) {
     case content::NOTIFICATION_RENDERER_PROCESS_CREATED: {
       content::RenderProcessHost* process =
           content::Source<content::RenderProcessHost>(source).ptr();
       if (!ExtensionsBrowserClient::Get()->IsSameContext(
                browser_context_, process->GetBrowserContext()))
         break;
 
       // Platform apps need to know the system font.
-      scoped_ptr<base::DictionaryValue> fonts(new base::DictionaryValue);
-      webui::SetFontAndTextDirection(fonts.get());
-      std::string font_family, font_size;
-      fonts->GetString("fontfamily", &font_family);
-      fonts->GetString("fontsize", &font_size);
-      process->Send(new ExtensionMsg_SetSystemFont(
-          font_family, font_size));
+      // TODO(dbeam): this is not the system font in all cases.
+      process->Send(new ExtensionMsg_SetSystemFont(webui::GetFontFamily(),
+                                                   webui::GetFontSize()));
 
       // Valid extension function names, used to setup bindings in renderer.
       std::vector<std::string> function_names;
       ExtensionFunctionDispatcher::GetAllFunctionNames(&function_names);
       process->Send(new ExtensionMsg_SetFunctionNames(function_names));
 
       // Scripting whitelist. This is modified by tests and must be communicated
       // to renderers.
       process->Send(new ExtensionMsg_SetScriptingWhitelist(
           extensions::ExtensionsClient::Get()->GetScriptingWhitelist()));
@@ skipping 49 matching lines @@
     BrowserContext* context) const {
   // Redirected in incognito.
   return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
 }
 
 bool RendererStartupHelperFactory::ServiceIsCreatedWithBrowserContext() const {
   return true;
 }
 
 }  // namespace extensions