[sensors] Add Permission guard to the generic sensor apis.

android_webview/browser/aw_permission_manager.cc

Index: android_webview/browser/aw_permission_manager.cc
diff --git a/android_webview/browser/aw_permission_manager.cc b/android_webview/browser/aw_permission_manager.cc
index 12a6cdd1a840377462fddf9adcff9e1515145945..ed56443600ad35c9467461910ae6013fac5514b2 100644
--- a/android_webview/browser/aw_permission_manager.cc
+++ b/android_webview/browser/aw_permission_manager.cc
@@ -311,6 +311,7 @@ int AwPermissionManager::RequestPermissions(
             base::Bind(&OnRequestResponse, weak_ptr_factory_.GetWeakPtr(),
                        request_id, permissions[i]));
         break;
+      case PermissionType::SENSORS:
       case PermissionType::AUDIO_CAPTURE:
       case PermissionType::VIDEO_CAPTURE:
       case PermissionType::NOTIFICATIONS:
@@ -449,6 +450,7 @@ void AwPermissionManager::CancelPermissionRequest(int request_id) {
         if (delegate)
           delegate->CancelMIDISysexPermissionRequests(requesting_origin);
         break;
+      case PermissionType::SENSORS:
       case PermissionType::NOTIFICATIONS:
       case PermissionType::PUSH_MESSAGING:
       case PermissionType::DURABLE_STORAGE: