Fix crash in ThemeService with --disable-extensions (fixes issue #2852)

patch/patches/chrome_browser_themes.patch

@@ -1,37 +1,82 @@
+diff --git chrome/browser/themes/theme_service.cc chrome/browser/themes/theme_service.cc
+index 2a6df8119a44..dffe87df9c54 100644
+--- chrome/browser/themes/theme_service.cc
++++ chrome/browser/themes/theme_service.cc
+@@ -25,6 +25,7 @@
+ #include "base/task/thread_pool.h"
+ #include "base/threading/thread_task_runner_handle.h"
+ #include "build/build_config.h"
++#include "cef/libcef/features/runtime.h"
+ #include "chrome/browser/chrome_notification_types.h"
+ #include "chrome/browser/extensions/extension_service.h"
+ #include "chrome/browser/extensions/theme_installed_infobar_delegate.h"
+@@ -54,6 +55,10 @@
+ #include "extensions/common/extension_set.h"
+ #include "ui/base/layout.h"
+ 
++#if BUILDFLAG(ENABLE_CEF)
++#include "cef/libcef/common/extensions/extensions_util.h"
++#endif
++
+ #if BUILDFLAG(ENABLE_EXTENSIONS)
+ #include "base/scoped_observer.h"
+ #include "extensions/browser/extension_registry_observer.h"
+@@ -270,11 +275,19 @@ void ThemeService::Init() {
+   // OnExtensionServiceReady. Otherwise, the ThemeObserver won't be
+   // constructed in time to observe the corresponding events.
+ #if BUILDFLAG(ENABLE_EXTENSIONS)
++#if BUILDFLAG(ENABLE_CEF)
++  const bool extensions_disabled = cef::IsAlloyRuntimeEnabled() &&
++                                   !extensions::ExtensionsEnabled();
++#else
++  const bool extensions_disabled = false;
++#endif
++  if (!extensions_disabled) {
+   theme_observer_ = std::make_unique<ThemeObserver>(this);
+ 
+   extensions::ExtensionSystem::Get(profile_)->ready().Post(
+       FROM_HERE, base::Bind(&ThemeService::OnExtensionServiceReady,
+                             weak_ptr_factory_.GetWeakPtr()));
++  }
+ #endif
+   theme_syncable_service_.reset(new ThemeSyncableService(profile_, this));
+ 
 diff --git chrome/browser/themes/theme_service_factory.cc chrome/browser/themes/theme_service_factory.cc
-index caec77bbe3ba..1640307eef65 100644
+index caec77bbe3ba..92a813acc008 100644
 --- chrome/browser/themes/theme_service_factory.cc
 +++ chrome/browser/themes/theme_service_factory.cc
 @@ -6,6 +6,7 @@
  
  #include "base/no_destructor.h"
  #include "build/build_config.h"
-+#include "cef/libcef/features/features.h"
++#include "cef/libcef/features/runtime.h"
  #include "chrome/browser/extensions/extension_system_factory.h"
  #include "chrome/browser/profiles/incognito_helpers.h"
  #include "chrome/browser/profiles/profile.h"
-@@ -41,6 +42,10 @@ const ThemeHelper& GetThemeHelper() {
+@@ -27,6 +28,10 @@
- 
+ #include "ui/views/linux_ui/linux_ui.h"
- }  // namespace
+ #endif
  
 +#if BUILDFLAG(ENABLE_CEF)
 +#include "cef/libcef/common/extensions/extensions_util.h"
 +#endif
 +
- // static
+ namespace {
- ThemeService* ThemeServiceFactory::GetForProfile(Profile* profile) {
+ 
-   return static_cast<ThemeService*>(
+ const ThemeHelper& GetThemeHelper() {
-@@ -70,7 +75,13 @@ ThemeServiceFactory::ThemeServiceFactory()
+@@ -70,7 +75,15 @@ ThemeServiceFactory::ThemeServiceFactory()
            BrowserContextDependencyManager::GetInstance()) {
    DependsOn(extensions::ExtensionRegistryFactory::GetInstance());
    DependsOn(extensions::ExtensionPrefsFactory::GetInstance());
 +#if BUILDFLAG(ENABLE_CEF)
-+  if (extensions::ExtensionsEnabled()) {
++  const bool extensions_disabled = cef::IsAlloyRuntimeEnabled() &&
++                                   !extensions::ExtensionsEnabled();
++#else
++  const bool extensions_disabled = false;
 +#endif
++  if (!extensions_disabled) {
    DependsOn(extensions::ExtensionSystemFactory::GetInstance());
-+#if BUILDFLAG(ENABLE_CEF)
 +  }
-+#endif
  }
  
  ThemeServiceFactory::~ThemeServiceFactory() {}