diff --git chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
index 6b81e1e0f6c5..7509c2b18b47 100644
--- chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
+++ chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc
@@ -164,6 +164,10 @@ void ChromeInternalLogSource::Fetch(const SysLogsSourceCallback& callback) {
 }
 
 void ChromeInternalLogSource::PopulateSyncLogs(SystemLogsResponse* response) {
+  // CEF should avoid loading ProfileSyncServiceFactory which depends on a lot
+  // of unnecessary Chrome-specific factories.
+  return;
+
   // We are only interested in sync logs for the primary user profile.
   Profile* profile = ProfileManager::GetPrimaryUserProfile();
   if (!profile ||
diff --git chrome/browser/ui/webui/net_internals/net_internals_ui.cc chrome/browser/ui/webui/net_internals/net_internals_ui.cc
index 442ee5b2a91f..23c3feb4dea3 100644
--- chrome/browser/ui/webui/net_internals/net_internals_ui.cc
+++ chrome/browser/ui/webui/net_internals/net_internals_ui.cc
@@ -515,41 +515,31 @@ void NetInternalsMessageHandler::OnClearBrowserCache(
 void NetInternalsMessageHandler::OnGetPrerenderInfo(
     const base::ListValue* list) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  SendJavascriptCommand(
-      "receivedPrerenderInfo",
-      chrome_browser_net::GetPrerenderInfo(Profile::FromWebUI(web_ui())));
+  SendJavascriptCommand("receivedPrerenderInfo", nullptr);
 }
 
 void NetInternalsMessageHandler::OnGetHistoricNetworkStats(
     const base::ListValue* list) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  SendJavascriptCommand("receivedHistoricNetworkStats",
-                        chrome_browser_net::GetHistoricNetworkStats(
-                            Profile::FromWebUI(web_ui())));
+  SendJavascriptCommand("receivedHistoricNetworkStats", nullptr);
 }
 
 void NetInternalsMessageHandler::OnGetSessionNetworkStats(
     const base::ListValue* list) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  SendJavascriptCommand(
-      "receivedSessionNetworkStats",
-      chrome_browser_net::GetSessionNetworkStats(Profile::FromWebUI(web_ui())));
+  SendJavascriptCommand("receivedSessionNetworkStats", nullptr);
 }
 
 void NetInternalsMessageHandler::OnGetExtensionInfo(
     const base::ListValue* list) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  SendJavascriptCommand(
-      "receivedExtensionInfo",
-      chrome_browser_net::GetExtensionInfo(Profile::FromWebUI(web_ui())));
+  SendJavascriptCommand("receivedExtensionInfo", nullptr);
 }
 
 void NetInternalsMessageHandler::OnGetDataReductionProxyInfo(
     const base::ListValue* list) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  SendJavascriptCommand("receivedDataReductionProxyInfo",
-                        chrome_browser_net::GetDataReductionProxyInfo(
-                            Profile::FromWebUI(web_ui())));
+  SendJavascriptCommand("receivedDataReductionProxyInfo", nullptr);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -629,9 +619,17 @@ void NetInternalsMessageHandler::IOThreadImpl::OnRendererReady(
 
   PrePopulateEventList();
 
-  // Register with network stack to observe events.
-  io_thread_->net_log()->AddObserver(
-      this, net::NetLogCaptureMode::IncludeCookiesAndCredentials());
+  net::NetLog* net_log = nullptr;
+  if (io_thread_)
+    net_log = io_thread_->net_log();
+  else
+    net_log = g_browser_process->net_log();
+
+  if (net_log) {
+    // Register with network stack to observe events.
+    net_log->AddObserver(
+        this, net::NetLogCaptureMode::IncludeCookiesAndCredentials());
+  }
 }
 
 void NetInternalsMessageHandler::IOThreadImpl::OnGetNetInfo(
@@ -1105,7 +1103,8 @@ void NetInternalsMessageHandler::IOThreadImpl::PrePopulateEventList() {
   std::set<net::URLRequestContext*> contexts;
   for (const auto& getter : context_getters_)
     contexts.insert(getter->GetURLRequestContext());
-  contexts.insert(io_thread_->globals()->system_request_context);
+  if (io_thread_)
+    contexts.insert(io_thread_->globals()->system_request_context);
 
   // Add entries for ongoing network objects.
   CreateNetLogEntriesForActiveObjects(contexts, this);
diff --git content/browser/resource_context_impl.cc content/browser/resource_context_impl.cc
index 141a08305332..b16b4d61988d 100644
--- content/browser/resource_context_impl.cc
+++ content/browser/resource_context_impl.cc
@@ -58,6 +58,10 @@ URLDataManagerBackend* GetURLDataManagerForResourceContext(
       context->GetUserData(kURLDataManagerBackendKeyName));
 }
 
+const void* GetURLDataManagerBackendUserDataKey() {
+  return kURLDataManagerBackendKeyName;
+}
+
 void InitializeResourceContext(BrowserContext* browser_context) {
   ResourceContext* resource_context = browser_context->GetResourceContext();
 
diff --git content/browser/resource_context_impl.h content/browser/resource_context_impl.h
index 903cc543a242..5bd30ae82974 100644
--- content/browser/resource_context_impl.h
+++ content/browser/resource_context_impl.h
@@ -28,6 +28,8 @@ CONTENT_EXPORT StreamContext* GetStreamContextForResourceContext(
 URLDataManagerBackend* GetURLDataManagerForResourceContext(
     ResourceContext* context);
 
+CONTENT_EXPORT const void* GetURLDataManagerBackendUserDataKey();
+
 // Initialize the above data on the ResourceContext from a given BrowserContext.
 CONTENT_EXPORT void InitializeResourceContext(BrowserContext* browser_context);
 
diff --git content/browser/webui/url_data_manager.cc content/browser/webui/url_data_manager.cc
index f45d227fe94a..32e37bd0a79e 100644
--- content/browser/webui/url_data_manager.cc
+++ content/browser/webui/url_data_manager.cc
@@ -150,6 +150,11 @@ void URLDataManager::UpdateWebUIDataSource(
       ->UpdateWebUIDataSource(source_name, std::move(update));
 }
 
+// static
+const void* URLDataManager::GetUserDataKey() {
+  return kURLDataManagerKeyName;
+}
+
 // static
 bool URLDataManager::IsScheduledForDeletion(
     const URLDataSourceImpl* data_source) {
diff --git content/browser/webui/url_data_manager.h content/browser/webui/url_data_manager.h
index 5ceb74d411fc..0c584d6e69b5 100644
--- content/browser/webui/url_data_manager.h
+++ content/browser/webui/url_data_manager.h
@@ -69,6 +69,8 @@ class CONTENT_EXPORT URLDataManager : public base::SupportsUserData::Data {
       const std::string& source_name,
       std::unique_ptr<base::DictionaryValue> update);
 
+  static const void* GetUserDataKey();
+
  private:
   friend class URLDataSourceImpl;
   friend struct DeleteURLDataSource;