Vulcanize MD History to improve page-load performance

chrome/browser/ui/webui/md_history_ui.cc

 // Copyright 2015 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 "chrome/browser/ui/webui/md_history_ui.h"
 
 #include "base/command_line.h"
 #include "build/build_config.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
@@ skipping 96 matching lines @@
   source->AddBoolean("groupByDomain", group_by_domain);
 
   source->AddBoolean("isGuestSession", profile->IsGuestSession());
 
   SigninManagerBase* signin_manager =
       SigninManagerFactory::GetForProfile(profile);
   bool is_authenticated = signin_manager != nullptr &&
       signin_manager->IsAuthenticated();
   source->AddBoolean("isUserSignedIn", is_authenticated);
 
+  source->AddResourcePath("constants.html", IDR_MD_HISTORY_CONSTANTS_HTML);
+  source->AddResourcePath("constants.js", IDR_MD_HISTORY_CONSTANTS_JS);
+  source->AddResourcePath("images/100/sign_in_promo.png",
+                          IDR_MD_HISTORY_IMAGES_100_SIGN_IN_PROMO_PNG);
+  source->AddResourcePath("images/200/sign_in_promo.png",
+                          IDR_MD_HISTORY_IMAGES_200_SIGN_IN_PROMO_PNG);
+  source->AddResourcePath("history.js", IDR_MD_HISTORY_HISTORY_JS);
+
+#if BUILDFLAG(USE_VULCANIZE)
+  source->AddResourcePath("app.html",
+                          IDR_MD_HISTORY_APP_VULCANIZED_HTML);
+  source->AddResourcePath("app.crisper.js",
+                          IDR_MD_HISTORY_APP_CRISPER_JS);
+#else
   source->AddResourcePath("app.html", IDR_MD_HISTORY_APP_HTML);
   source->AddResourcePath("app.js", IDR_MD_HISTORY_APP_JS);
   source->AddResourcePath("browser_service.html",
                           IDR_MD_HISTORY_BROWSER_SERVICE_HTML);
   source->AddResourcePath("browser_service.js",
                           IDR_MD_HISTORY_BROWSER_SERVICE_JS);
-  source->AddResourcePath("constants.html", IDR_MD_HISTORY_CONSTANTS_HTML);
-  source->AddResourcePath("constants.js", IDR_MD_HISTORY_CONSTANTS_JS);
   source->AddResourcePath("grouped_list.html",
                           IDR_MD_HISTORY_GROUPED_LIST_HTML);
   source->AddResourcePath("grouped_list.js", IDR_MD_HISTORY_GROUPED_LIST_JS);
   source->AddResourcePath("history_item.html",
                           IDR_MD_HISTORY_HISTORY_ITEM_HTML);
   source->AddResourcePath("history_item.js", IDR_MD_HISTORY_HISTORY_ITEM_JS);
   source->AddResourcePath("history_list.html",
                           IDR_MD_HISTORY_HISTORY_LIST_HTML);
   source->AddResourcePath("history_list.js", IDR_MD_HISTORY_HISTORY_LIST_JS);
   source->AddResourcePath("history_list_behavior.html",
                           IDR_MD_HISTORY_HISTORY_LIST_BEHAVIOR_HTML);
   source->AddResourcePath("history_list_behavior.js",
                           IDR_MD_HISTORY_HISTORY_LIST_BEHAVIOR_JS);
   source->AddResourcePath("history_toolbar.html",
                           IDR_MD_HISTORY_HISTORY_TOOLBAR_HTML);
   source->AddResourcePath("history_toolbar.js",
                           IDR_MD_HISTORY_HISTORY_TOOLBAR_JS);
-  source->AddResourcePath("history.js", IDR_MD_HISTORY_HISTORY_JS);
   source->AddResourcePath("icons.html", IDR_MD_HISTORY_ICONS_HTML);
-  source->AddResourcePath("images/100/sign_in_promo.png",
-                          IDR_MD_HISTORY_IMAGES_100_SIGN_IN_PROMO_PNG);
-  source->AddResourcePath("images/200/sign_in_promo.png",
-                          IDR_MD_HISTORY_IMAGES_200_SIGN_IN_PROMO_PNG);
   source->AddResourcePath("list_container.html",
                           IDR_MD_HISTORY_LIST_CONTAINER_HTML);
   source->AddResourcePath("list_container.js",
                           IDR_MD_HISTORY_LIST_CONTAINER_JS);
   source->AddResourcePath("searched_label.html",
                           IDR_MD_HISTORY_SEARCHED_LABEL_HTML);
   source->AddResourcePath("searched_label.js",
                           IDR_MD_HISTORY_SEARCHED_LABEL_JS);
   source->AddResourcePath("shared_style.html",
                           IDR_MD_HISTORY_SHARED_STYLE_HTML);
   source->AddResourcePath("side_bar.html", IDR_MD_HISTORY_SIDE_BAR_HTML);
   source->AddResourcePath("side_bar.js", IDR_MD_HISTORY_SIDE_BAR_JS);
   source->AddResourcePath("synced_device_card.html",
                           IDR_MD_HISTORY_SYNCED_DEVICE_CARD_HTML);
   source->AddResourcePath("synced_device_card.js",
                           IDR_MD_HISTORY_SYNCED_DEVICE_CARD_JS);
   source->AddResourcePath("synced_device_manager.html",
                           IDR_MD_HISTORY_SYNCED_DEVICE_MANAGER_HTML);
   source->AddResourcePath("synced_device_manager.js",
                           IDR_MD_HISTORY_SYNCED_DEVICE_MANAGER_JS);
+#endif  // BUILDFLAG(USE_VULCANIZE)
 
   source->SetDefaultResource(IDR_MD_HISTORY_HISTORY_HTML);
   source->SetJsonPath("strings.js");
 
   return source;
 }
 
 }  // namespace
 
 MdHistoryUI::MdHistoryUI(content::WebUI* web_ui) : WebUIController(web_ui) {
@@ skipping 29 matching lines @@
   base::FeatureList::ClearInstanceForTesting();
   base::FeatureList::SetInstance(std::move(feature_list));
 }
 
 // static
 base::RefCountedMemory* MdHistoryUI::GetFaviconResourceBytes(
     ui::ScaleFactor scale_factor) {
   return ResourceBundle::GetSharedInstance().LoadDataResourceBytesForScale(
       IDR_HISTORY_FAVICON, scale_factor);
 }