chromeos: Open OS settings from bluetooth chooser "adapter off" link

The SplitSettings project has moved OS-specific settings, including
Bluetooth, into a separate WebUI surface. Directly open the Bluetooth
settings subpage from the bluetooth chooser "adapter off" link,
rather than opening browser settings and trying to do a search.

Bug: 994896
Test: Turn adapter off, open https://permission.site, click bluetooth, click "Turn on bluetooth" link
Change-Id: I602d979c88f3d89c82702e92ad3bb81230f03698
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1771841Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: James Cook <jamescook@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690420}

chrome/browser/ui/bluetooth/bluetooth_chooser_controller.cc

@@ -19,6 +19,11 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "url/gurl.h"
 
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/ui/settings_window_manager_chromeos.h"
+#include "chrome/common/webui_url_constants.h"
+#endif  // defined(OS_CHROMEOS)
+
 namespace {
 
 Browser* GetBrowser() {
@@ -101,10 +106,17 @@ void BluetoothChooserController::RefreshOptions() {
 }
 
 void BluetoothChooserController::OpenAdapterOffHelpUrl() const {
+#if defined(OS_CHROMEOS)
+  // Chrome OS can directly link to the OS setting to turn on the adapter.
+  chrome::SettingsWindowManager::GetInstance()->ShowOSSettings(
+      GetBrowser()->profile(), chrome::kBluetoothSubPage);
+#else
+  // For other operating systems, show a help center page in a tab.
   GetBrowser()->OpenURL(content::OpenURLParams(
       GURL(chrome::kBluetoothAdapterOffHelpURL), content::Referrer(),
       WindowOpenDisposition::NEW_FOREGROUND_TAB,
       ui::PAGE_TRANSITION_AUTO_TOPLEVEL, false /* is_renderer_initialized */));
+#endif
 }
 
 base::string16 BluetoothChooserController::GetStatus() const {

chrome/common/url_constants.cc

@@ -18,11 +18,7 @@ const char kAdvancedProtectionDownloadLearnMoreURL[] =
     "https://support.google.com/accounts/?p=ap_faq";
 
 const char kBluetoothAdapterOffHelpURL[] =
-#if defined(OS_CHROMEOS)
-    "chrome://settings/?search=bluetooth";
-#else
     "https://support.google.com/chrome?p=bluetooth";
-#endif
 
 const char kCastCloudServicesHelpURL[] =
     "https://support.google.com/chromecast/?p=casting_cloud_services";