[Tab Metrics] Measure FP, FCP and FMP for Foreground Tab during Session Restore

chrome/browser/ui/browser_tabrestore.cc

 // Copyright (c) 2012 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/browser_tabrestore.h"
 
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_service_factory.h"
@@ skipping 27 matching lines @@
 }
 
 WebContents* CreateRestoredTab(
     Browser* browser,
     const std::vector<SerializedNavigationEntry>& navigations,
     int selected_navigation,
     const std::string& extension_app_id,
     bool from_last_session,
     content::SessionStorageNamespace* session_storage_namespace,
     const std::string& user_agent_override,
-    bool initially_hidden) {
+    bool initially_hidden,
+    base::Optional<RestoreOrigin::Type> restore_origin_type = base::nullopt) {
   GURL restore_url = navigations.at(selected_navigation).virtual_url();
   // TODO(ajwong): Remove the temporary session_storage_namespace_map when
   // we teach session restore to understand that one tab can have multiple
   // SessionStorageNamespace objects. Also remove the
   // session_storage_namespace.h include since we only need that to assign
   // into the map.
   content::SessionStorageNamespaceMap session_storage_namespace_map;
   session_storage_namespace_map[std::string()] = session_storage_namespace;
   WebContents::CreateParams create_params(
       browser->profile(),
       tab_util::GetSiteInstanceForNewTab(browser->profile(), restore_url));
   create_params.initially_hidden = initially_hidden;
   WebContents* base_web_contents =
       browser->tab_strip_model()->GetActiveWebContents();
   if (base_web_contents) {
     create_params.initial_size =
         base_web_contents->GetContainerBounds().size();
   }
   WebContents* web_contents = content::WebContents::CreateWithSessionStorage(
       create_params,
       session_storage_namespace_map);
+  if (restore_origin_type) {
+    RestoreOrigin::CreateForWebContents(web_contents,
+                                        restore_origin_type.value());
+  }
   extensions::TabHelper::CreateForWebContents(web_contents);
   extensions::TabHelper::FromWebContents(web_contents)->
       SetExtensionAppById(extension_app_id);
   std::vector<std::unique_ptr<NavigationEntry>> entries =
       ContentSerializedNavigationBuilder::ToNavigationEntries(
           navigations, browser->profile());
   web_contents->SetUserAgentOverride(user_agent_override);
   web_contents->GetController().Restore(
       selected_navigation, GetRestoreType(browser, from_last_session),
       &entries);
   DCHECK_EQ(0u, entries.size());
 
   return web_contents;
 }
 
 }  // namespace
 
 content::WebContents* AddRestoredTab(
     Browser* browser,
     const std::vector<SerializedNavigationEntry>& navigations,
     int tab_index,
     int selected_navigation,
     const std::string& extension_app_id,
     bool select,
     bool pin,
     bool from_last_session,
     content::SessionStorageNamespace* session_storage_namespace,
-    const std::string& user_agent_override) {
-  WebContents* web_contents = CreateRestoredTab(browser,
-                                                navigations,
-                                                selected_navigation,
-                                                extension_app_id,
-                                                from_last_session,
-                                                session_storage_namespace,
-                                                user_agent_override,
-                                                !select);
+    const std::string& user_agent_override,
+    base::Optional<RestoreOrigin::Type> restore_origin_type) {
+  WebContents* web_contents = CreateRestoredTab(
+      browser, navigations, selected_navigation, extension_app_id,
+      from_last_session, session_storage_namespace, user_agent_override,
+      !select, restore_origin_type);
 
   int add_types = select ? TabStripModel::ADD_ACTIVE
                          : TabStripModel::ADD_NONE;
   if (pin) {
     tab_index = std::min(
         tab_index, browser->tab_strip_model()->IndexOfFirstNonPinnedTab());
     add_types |= TabStripModel::ADD_PINNED;
   }
   browser->tab_strip_model()->InsertWebContentsAt(tab_index, web_contents,
                                                   add_types);
@@ skipping 44 matching lines @@
   int insertion_index = tab_strip->active_index();
   tab_strip->InsertWebContentsAt(insertion_index + 1,
                                  web_contents,
                                  TabStripModel::ADD_ACTIVE |
                                  TabStripModel::ADD_INHERIT_GROUP);
   tab_strip->CloseWebContentsAt(insertion_index, TabStripModel::CLOSE_NONE);
   return web_contents;
 }
 
 }  // namespace chrome