Make PermissionRequestManager::requests_ correspond to the active prompt

chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc

Index: chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
diff --git a/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc b/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
index 9ca35cec672045c1f32f5abc801c3245d4121afa..f5f1cb28a391ad9b4c61e194c444d33996df4983 100644
--- a/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
+++ b/chrome/browser/ui/views/permission_bubble/permission_prompt_impl.cc
@@ -445,15 +445,11 @@ void PermissionPromptImpl::Hide() {
   }
 }
 
-bool PermissionPromptImpl::IsVisible() {
-  return bubble_delegate_ != nullptr;
-}
-
 void PermissionPromptImpl::UpdateAnchorPosition() {
   DCHECK(browser_);
   DCHECK(browser_->window());
 
-  if (IsVisible()) {
+  if (bubble_delegate_) {
     bubble_delegate_->set_parent_window(
         platform_util::GetViewForWindow(browser_->window()->GetNativeWindow()));
     bubble_delegate_->UpdateAnchor(GetAnchorView(),