diff --git a/patch/patch.cfg b/patch/patch.cfg
index 04f55dbb1..042ef2ce8 100644
--- a/patch/patch.cfg
+++ b/patch/patch.cfg
@@ -112,18 +112,11 @@ patches = [
     'path': '../ui/base/dragdrop/',
   },
   {
-    # Fix AtExitManager assertion on SpellcheckServiceFactory destruction during
-    # Windows multi-threaded message loop shutdown.
-    # https://bitbucket.org/chromiumembedded/cef/issues/137
-    'name': 'spellcheck_137',
-    'path': '../chrome/browser/spellchecker/',
-  },
-  {
-    # Fix AtExitManager assertion on PrefWatcherFactory destruction during
-    # Windows multi-threaded message loop shutdown.
+    # Windows: Fix AtExitManager assertion on *ServiceFactory destruction during
+    # multi-threaded message loop shutdown.
     # https://bitbucket.org/chromiumembedded/cef/issues/1680
-    'name': 'prefs_tab_helper_1680',
-    'path': '../chrome/browser/ui/prefs/',
+    'name': 'service_factory_1680',
+    'path': '../',
   },
   {
     # Make URLRequest::set_is_pending() public so that it can be called from
diff --git a/patch/patches/service_factory_1680.patch b/patch/patches/service_factory_1680.patch
new file mode 100644
index 000000000..ce433d7e2
--- /dev/null
+++ b/patch/patches/service_factory_1680.patch
@@ -0,0 +1,146 @@
+diff --git chrome/browser/spellchecker/spellcheck_factory.cc chrome/browser/spellchecker/spellcheck_factory.cc
+index 3857256..3d1562c 100644
+--- chrome/browser/spellchecker/spellcheck_factory.cc
++++ chrome/browser/spellchecker/spellcheck_factory.cc
+@@ -16,6 +16,13 @@
+ #include "content/public/browser/render_process_host.h"
+ #include "ui/base/l10n/l10n_util.h"
+ 
++namespace {
++
++static base::LazyInstance<SpellcheckServiceFactory>::Leaky
++    g_spellcheck_service_factory = LAZY_INSTANCE_INITIALIZER;
++
++}  // namespace
++
+ // static
+ SpellcheckService* SpellcheckServiceFactory::GetForContext(
+     content::BrowserContext* context) {
+@@ -38,7 +45,7 @@ SpellcheckService* SpellcheckServiceFactory::GetForRenderProcessId(
+ 
+ // static
+ SpellcheckServiceFactory* SpellcheckServiceFactory::GetInstance() {
+-  return base::Singleton<SpellcheckServiceFactory>::get();
++  return g_spellcheck_service_factory.Pointer();
+ }
+ 
+ SpellcheckServiceFactory::SpellcheckServiceFactory()
+diff --git chrome/browser/spellchecker/spellcheck_factory.h chrome/browser/spellchecker/spellcheck_factory.h
+index e8eb9f7..48126000 100644
+--- chrome/browser/spellchecker/spellcheck_factory.h
++++ chrome/browser/spellchecker/spellcheck_factory.h
+@@ -7,7 +7,7 @@
+ 
+ #include "base/gtest_prod_util.h"
+ #include "base/macros.h"
+-#include "base/memory/singleton.h"
++#include "base/lazy_instance.h"
+ #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+ 
+ class SpellcheckService;
+@@ -26,7 +26,7 @@ class SpellcheckServiceFactory : public BrowserContextKeyedServiceFactory {
+   static SpellcheckServiceFactory* GetInstance();
+ 
+  private:
+-  friend struct base::DefaultSingletonTraits<SpellcheckServiceFactory>;
++  friend struct base::DefaultLazyInstanceTraits<SpellcheckServiceFactory>;
+ 
+   SpellcheckServiceFactory();
+   ~SpellcheckServiceFactory() override;
+diff --git chrome/browser/supervised_user/supervised_user_settings_service_factory.cc chrome/browser/supervised_user/supervised_user_settings_service_factory.cc
+index 173ac31..473e561 100644
+--- chrome/browser/supervised_user/supervised_user_settings_service_factory.cc
++++ chrome/browser/supervised_user/supervised_user_settings_service_factory.cc
+@@ -9,6 +9,13 @@
+ #include "chrome/browser/supervised_user/supervised_user_settings_service.h"
+ #include "components/keyed_service/content/browser_context_dependency_manager.h"
+ 
++namespace {
++
++base::LazyInstance<SupervisedUserSettingsServiceFactory>::Leaky
++    g_service_factory = LAZY_INSTANCE_INITIALIZER;
++
++}  // namespace
++
+ // static
+ SupervisedUserSettingsService*
+ SupervisedUserSettingsServiceFactory::GetForProfile(Profile* profile) {
+@@ -19,7 +26,7 @@ SupervisedUserSettingsServiceFactory::GetForProfile(Profile* profile) {
+ // static
+ SupervisedUserSettingsServiceFactory*
+ SupervisedUserSettingsServiceFactory::GetInstance() {
+-  return base::Singleton<SupervisedUserSettingsServiceFactory>::get();
++  return g_service_factory.Pointer();
+ }
+ 
+ SupervisedUserSettingsServiceFactory::SupervisedUserSettingsServiceFactory()
+diff --git chrome/browser/supervised_user/supervised_user_settings_service_factory.h chrome/browser/supervised_user/supervised_user_settings_service_factory.h
+index 2907619..c7a36ea 100644
+--- chrome/browser/supervised_user/supervised_user_settings_service_factory.h
++++ chrome/browser/supervised_user/supervised_user_settings_service_factory.h
+@@ -5,7 +5,7 @@
+ #ifndef CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SETTINGS_SERVICE_FACTORY_H_
+ #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SETTINGS_SERVICE_FACTORY_H_
+ 
+-#include "base/memory/singleton.h"
++#include "base/lazy_instance.h"
+ #include "chrome/browser/supervised_user/supervised_users.h"
+ #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+ 
+@@ -20,7 +20,7 @@ class SupervisedUserSettingsServiceFactory
+   static SupervisedUserSettingsServiceFactory* GetInstance();
+ 
+  private:
+-  friend struct base::DefaultSingletonTraits<
++  friend struct base::DefaultLazyInstanceTraits<
+       SupervisedUserSettingsServiceFactory>;
+ 
+   SupervisedUserSettingsServiceFactory();
+diff --git chrome/browser/ui/prefs/prefs_tab_helper.cc chrome/browser/ui/prefs/prefs_tab_helper.cc
+index 72267d2..5146b39 100644
+--- chrome/browser/ui/prefs/prefs_tab_helper.cc
++++ chrome/browser/ui/prefs/prefs_tab_helper.cc
+@@ -11,8 +11,8 @@
+ #include <string>
+ 
+ #include "base/command_line.h"
++#include "base/lazy_instance.h"
+ #include "base/macros.h"
+-#include "base/memory/singleton.h"
+ #include "base/strings/string_number_conversions.h"
+ #include "base/strings/string_util.h"
+ #include "base/strings/stringprintf.h"
+@@ -431,12 +431,10 @@ class PrefWatcherFactory : public BrowserContextKeyedServiceFactory {
+         GetInstance()->GetServiceForBrowserContext(profile, true));
+   }
+ 
+-  static PrefWatcherFactory* GetInstance() {
+-    return base::Singleton<PrefWatcherFactory>::get();
+-  }
++  static PrefWatcherFactory* GetInstance();
+ 
+  private:
+-  friend struct base::DefaultSingletonTraits<PrefWatcherFactory>;
++  friend struct base::DefaultLazyInstanceTraits<PrefWatcherFactory>;
+ 
+   PrefWatcherFactory() : BrowserContextKeyedServiceFactory(
+       "PrefWatcher",
+@@ -457,6 +455,18 @@ class PrefWatcherFactory : public BrowserContextKeyedServiceFactory {
+   }
+ };
+ 
++namespace {
++
++base::LazyInstance<PrefWatcherFactory>::Leaky g_pref_watcher_factory =
++    LAZY_INSTANCE_INITIALIZER;
++
++}  // namespace
++
++// static
++PrefWatcherFactory* PrefWatcherFactory::GetInstance() {
++  return g_pref_watcher_factory.Pointer();
++}
++
+ // static
+ PrefWatcher* PrefWatcher::Get(Profile* profile) {
+   return PrefWatcherFactory::GetForProfile(profile);
diff --git a/patch/patches/spellcheck_137.patch b/patch/patches/spellcheck_137.patch
deleted file mode 100644
index 4387e0362..000000000
--- a/patch/patches/spellcheck_137.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-diff --git spellcheck_factory.cc spellcheck_factory.cc
-index 3857256..3d1562c 100644
---- spellcheck_factory.cc
-+++ spellcheck_factory.cc
-@@ -16,6 +16,13 @@
- #include "content/public/browser/render_process_host.h"
- #include "ui/base/l10n/l10n_util.h"
- 
-+namespace {
-+
-+static base::LazyInstance<SpellcheckServiceFactory>::Leaky
-+    g_spellcheck_service_factory = LAZY_INSTANCE_INITIALIZER;
-+
-+}  // namespace
-+
- // static
- SpellcheckService* SpellcheckServiceFactory::GetForContext(
-     content::BrowserContext* context) {
-@@ -38,7 +45,7 @@ SpellcheckService* SpellcheckServiceFactory::GetForRenderProcessId(
- 
- // static
- SpellcheckServiceFactory* SpellcheckServiceFactory::GetInstance() {
--  return base::Singleton<SpellcheckServiceFactory>::get();
-+  return g_spellcheck_service_factory.Pointer();
- }
- 
- SpellcheckServiceFactory::SpellcheckServiceFactory()
-diff --git spellcheck_factory.h spellcheck_factory.h
-index e8eb9f7..48126000 100644
---- spellcheck_factory.h
-+++ spellcheck_factory.h
-@@ -7,7 +7,7 @@
- 
- #include "base/gtest_prod_util.h"
- #include "base/macros.h"
--#include "base/memory/singleton.h"
-+#include "base/lazy_instance.h"
- #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
- 
- class SpellcheckService;
-@@ -26,7 +26,7 @@ class SpellcheckServiceFactory : public BrowserContextKeyedServiceFactory {
-   static SpellcheckServiceFactory* GetInstance();
- 
-  private:
--  friend struct base::DefaultSingletonTraits<SpellcheckServiceFactory>;
-+  friend struct base::DefaultLazyInstanceTraits<SpellcheckServiceFactory>;
- 
-   SpellcheckServiceFactory();
-   ~SpellcheckServiceFactory() override;