Add a kill switch for all of Web Bluetooth.

content/browser/bluetooth/bluetooth_dispatcher_host.cc

Index: content/browser/bluetooth/bluetooth_dispatcher_host.cc
diff --git a/content/browser/bluetooth/bluetooth_dispatcher_host.cc b/content/browser/bluetooth/bluetooth_dispatcher_host.cc
index b69fa4fa49f19a3632cda132998f947eec1a764d..9a189729b8941e50c3f094d8fe4a872b036fbd9b 100644
--- a/content/browser/bluetooth/bluetooth_dispatcher_host.cc
+++ b/content/browser/bluetooth/bluetooth_dispatcher_host.cc
@@ -1219,14 +1219,29 @@ void BluetoothDispatcherHost::OnRequestDeviceImpl(
     return;
   }
 
-  if (!GetContentClient()->browser()->AllowWebBluetooth(
-          web_contents->GetBrowserContext(), requesting_origin,
-          embedding_origin)) {
-    RecordRequestDeviceOutcome(
-        UMARequestDeviceOutcome::BLUETOOTH_CHOOSER_GLOBALLY_DISABLED);
-    Send(new BluetoothMsg_RequestDeviceError(
-        thread_id, request_id, WebBluetoothError::ChooserDisabled));
-    return;
+  switch (GetContentClient()->browser()->AllowWebBluetooth(
+      web_contents->GetBrowserContext(), requesting_origin, embedding_origin)) {
+    case ContentBrowserClient::AllowWebBluetoothResult::BLOCK_POLICY: {
+      RecordRequestDeviceOutcome(
+          UMARequestDeviceOutcome::BLUETOOTH_CHOOSER_GLOBALLY_DISABLED);
+      Send(new BluetoothMsg_RequestDeviceError(
+          thread_id, request_id, WebBluetoothError::ChooserDisabled));
+      return;
+    }
+    case ContentBrowserClient::AllowWebBluetoothResult::BLOCK_KILL_SWITCH: {
+      // Log to the developer console.
+      web_contents->GetMainFrame()->AddMessageToConsole(
+          content::CONSOLE_MESSAGE_LEVEL_LOG,
+          "Bluetooth permission has been blocked.");
+      // Block requests.
+      RecordRequestDeviceOutcome(
+          UMARequestDeviceOutcome::BLUETOOTH_KILL_SWITCH_ENABLED);
+      Send(new BluetoothMsg_RequestDeviceError(
+          thread_id, request_id, WebBluetoothError::KillSwitchEnabled));
+      return;
+    }
+    case ContentBrowserClient::AllowWebBluetoothResult::ALLOW:
+      break;
   }
 
   // Create storage for the information that backs the chooser, and show the