Store USB device permissions in website settings.

chrome/browser/permissions/permission_context.cc

Index: chrome/browser/permissions/permission_context.cc
diff --git a/chrome/browser/permissions/permission_context.cc b/chrome/browser/permissions/permission_context.cc
index 2a4f80605b101a416764e53ef07c5d4170e1ca44..f4b2ba87156e7893bb9e123db075b006353e85bc 100644
--- a/chrome/browser/permissions/permission_context.cc
+++ b/chrome/browser/permissions/permission_context.cc
@@ -18,6 +18,8 @@
 #include "chrome/browser/push_messaging/push_messaging_permission_context_factory.h"
 #include "chrome/browser/storage/durable_storage_permission_context.h"
 #include "chrome/browser/storage/durable_storage_permission_context_factory.h"
+#include "chrome/browser/usb/usb_permission_context.h"
+#include "chrome/browser/usb/usb_permission_context_factory.h"
 #include "content/public/browser/permission_type.h"
 
 #if defined(OS_ANDROID) || defined(OS_CHROMEOS)
@@ -56,6 +58,8 @@ PermissionContextBase* PermissionContext::Get(Profile* profile,
       return MediaStreamMicPermissionContextFactory::GetForProfile(profile);
     case PermissionType::VIDEO_CAPTURE:
       return MediaStreamCameraPermissionContextFactory::GetForProfile(profile);
+    case PermissionType::USB:
+      return UsbPermissionContextFactory::GetForProfile(profile);
     default:
       NOTREACHED() << "No PermissionContext associated with "
                    << static_cast<int>(permission_type);
@@ -83,6 +87,7 @@ const std::list<KeyedServiceBaseFactory*>& PermissionContext::GetFactories() {
     factories.push_back(MediaStreamMicPermissionContextFactory::GetInstance());
     factories.push_back(
         MediaStreamCameraPermissionContextFactory::GetInstance());
+    factories.push_back(UsbPermissionContextFactory::GetInstance());
   }
 
   return factories;