From: PF4Public@users.noreply.github.com
License: BSD
Subject: Fix building with use_bluez=false

This is a quick and dirty fix for building chromium with use_bluez=false
It prevents initialization and usage of Bluetooth by the browser
It is not supposed to be applied for use_bluez=true
The browser will SEGFAULT upon accessing chrome://bluetooth-internals/
It also breaks WebAuthn: https://github.com/PF4Public/gentoo-overlay/issues/254

---
--- a/headless/lib/browser/headless_browser_main_parts_posix.cc
+++ b/headless/lib/browser/headless_browser_main_parts_posix.cc
@@ -25,9 +25,8 @@
 #include "components/os_crypt/sync/os_crypt.h"
 #include "headless/public/switches.h"

-#if defined(USE_DBUS)
-#include "device/bluetooth/dbus/bluez_dbus_manager.h"
-#endif
+#include "device/bluetooth/bluetooth_adapter_factory.h"
+#include "device/bluetooth/dbus/dbus_bluez_manager_wrapper_linux.h"

 #endif  // BUILDFLAG(IS_LINUX)

@@ -134,7 +133,7 @@
 #if BUILDFLAG(IS_LINUX)

 #if defined(USE_DBUS)
-  bluez::BluezDBusManager::Initialize(/*system_bus=*/nullptr);
+  bluez::DBusBluezManagerWrapperLinux::Initialize();
 #endif

   // Set up crypt config. This needs to be done before anything starts the
--- a/chrome/browser/chrome_browser_main_linux.cc
+++ b/chrome/browser/chrome_browser_main_linux.cc
@@ -35,6 +35,11 @@
 #include "chrome/browser/dbus_memory_pressure_evaluator_linux.h"
 #endif

+#if BUILDFLAG(IS_LINUX)
+#include "device/bluetooth/bluetooth_adapter_factory.h"
+#include "device/bluetooth/dbus/dbus_bluez_manager_wrapper_linux.h"
+#endif
+
 #if !BUILDFLAG(IS_CHROMEOS_ASH)
 #include "base/command_line.h"
 #include "base/linux_util.h"
@@ -59,7 +64,9 @@
 #endif  // BUILDFLAG(IS_CHROMEOS)

 #if !BUILDFLAG(IS_CHROMEOS)
-  bluez::BluezDBusManager::Initialize(nullptr /* system_bus */);
+  #if BUILDFLAG(IS_LINUX)
+      bluez::DBusBluezManagerWrapperLinux::Initialize();
+  #endif

   // Set up crypt config. This needs to be done before anything starts the
   // network service, as the raw encryption key needs to be shared with the
@@ -117,7 +124,7 @@
 #endif  // defined(USE_DBUS) && !BUILDFLAG(IS_CHROMEOS)

 void ChromeBrowserMainPartsLinux::PostDestroyThreads() {
-#if BUILDFLAG(IS_CHROMEOS)
+#if BUILDFLAG(IS_LINUX)
   // No-op; per PostBrowserStart() comment, this is done elsewhere.
 #else
   bluez::BluezDBusManager::Shutdown();
--- a/chrome/browser/metrics/bluetooth_metrics_provider.cc
+++ b/chrome/browser/metrics/bluetooth_metrics_provider.cc
@@ -16,9 +16,7 @@

 bool BluetoothMetricsProvider::ProvideHistograms() {
   base::UmaHistogramEnumeration("Bluetooth.StackName",
-                                floss::features::IsFlossEnabled()
-                                    ? BluetoothStackName::kFloss
-                                    : BluetoothStackName::kBlueZ);
+                                BluetoothStackName::kBlueZ);
   return true;
 }

--- a/device/bluetooth/adapter.cc
+++ b/device/bluetooth/adapter.cc
@@ -115,7 +115,7 @@
   adapter_info->system_name = adapter_->GetSystemName();
 #endif
 #if BUILDFLAG(IS_CHROMEOS)
-  adapter_info->floss = floss::features::IsFlossEnabled();
+  adapter_info->floss = false;
   adapter_info->extended_advertisement_support =
       adapter_->IsExtendedAdvertisementsAvailable();
 #endif