Add a feature-controlled persistence checkbox to geolocation prompts on desktop Views platforms.

chrome/browser/permissions/permission_request.cc

Index: chrome/browser/permissions/permission_request.cc
diff --git a/chrome/browser/permissions/permission_request.cc b/chrome/browser/permissions/permission_request.cc
index ba24d376abc37915d5138021fd5e5998bc64b3f0..1a078a3327c929040d7c1e1737871e9848378743 100644
--- a/chrome/browser/permissions/permission_request.cc
+++ b/chrome/browser/permissions/permission_request.cc
@@ -6,10 +6,16 @@
 
 #include "ui/gfx/vector_icons_public.h"
 
+PermissionRequest::PermissionRequest() : persist_(true) {}
+
 gfx::VectorIconId PermissionRequest::GetVectorIconId() const {
   return gfx::VectorIconId::VECTOR_ICON_NONE;
 }
 
+bool PermissionRequest::ShouldShowPersistenceToggle() const {
+  return false;
+}
+
 PermissionRequestType PermissionRequest::GetPermissionRequestType() const {
   return PermissionRequestType::UNKNOWN;
 }