Add a kill switch for all of Web Bluetooth.

content/public/browser/content_browser_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/browser/content_browser_client.h"
 
 #include "base/files/file_path.h"
 #include "build/build_config.h"
 #include "content/public/browser/client_certificate_delegate.h"
 #include "content/public/common/sandbox_type.h"
@@ skipping 199 matching lines @@
                                                     ResourceContext* context) {
   return true;
 }
 #endif  // defined(ENABLE_WEBRTC)
 
 bool ContentBrowserClient::AllowKeygen(const GURL& url,
                                        content::ResourceContext* context) {
   return true;
 }
 
-bool ContentBrowserClient::AllowWebBluetooth(
+ContentBrowserClient::AllowWebBluetoothResult
+ContentBrowserClient::AllowWebBluetooth(
     content::BrowserContext* browser_context,
     const url::Origin& requesting_origin,
     const url::Origin& embedding_origin) {
-  return true;
+  return AllowWebBluetoothResult::ALLOW;
 }
 
 QuotaPermissionContext* ContentBrowserClient::CreateQuotaPermissionContext() {
   return nullptr;
 }
 
 scoped_ptr<storage::QuotaEvictionPolicy>
 ContentBrowserClient::GetTemporaryStorageEvictionPolicy(
     content::BrowserContext* context) {
   return scoped_ptr<storage::QuotaEvictionPolicy>();
@@ skipping 193 matching lines @@
 #if defined(VIDEO_HOLE)
 ExternalVideoSurfaceContainer*
 ContentBrowserClient::OverrideCreateExternalVideoSurfaceContainer(
     WebContents* web_contents) {
   NOTREACHED() << "Hole-punching is not supported. See crbug.com/469348.";
   return nullptr;
 }
 #endif
 
 }  // namespace content