Fix cancelling permission requests on Android when the PermissionRequestManager is enabled

chrome/browser/ui/permission_bubble/mock_permission_prompt.cc

Index: chrome/browser/ui/permission_bubble/mock_permission_prompt.cc
diff --git a/chrome/browser/ui/permission_bubble/mock_permission_prompt.cc b/chrome/browser/ui/permission_bubble/mock_permission_prompt.cc
index 1f6ce0a83708dad1d1ee106154ecb61e45baba22..658024efd5cfcc30775aae093e858f9b693810a2 100644
--- a/chrome/browser/ui/permission_bubble/mock_permission_prompt.cc
+++ b/chrome/browser/ui/permission_bubble/mock_permission_prompt.cc
@@ -15,6 +15,8 @@ MockPermissionPrompt::~MockPermissionPrompt() {
 
 void MockPermissionPrompt::Show(const std::vector<PermissionRequest*>& requests,
                                 const std::vector<bool>& accept_state) {
+  if (IsVisible())
+    return;
   factory_->ShowView(this);
   factory_->show_count_++;
   factory_->requests_count_ = manager_->requests_.size();
@@ -23,7 +25,9 @@ void MockPermissionPrompt::Show(const std::vector<PermissionRequest*>& requests,
   is_visible_ = true;
 }
 
-bool MockPermissionPrompt::CanAcceptRequestUpdate() {
+bool MockPermissionPrompt::MaybeCancelRequest() {
+  if (can_update_ui_)
+    Hide();
   return can_update_ui_;
 }