Fix MenuRunnerImpl Crash for context menu during drag-and-drop

ui/views/controls/menu/menu_controller.cc

Index: ui/views/controls/menu/menu_controller.cc
diff --git a/ui/views/controls/menu/menu_controller.cc b/ui/views/controls/menu/menu_controller.cc
index 23c2e1bc81e58b46ce0e6a7045d654181d3e07d6..886e7d2c9c92d079876d32d5367b07ce94b1888d 100644
--- a/ui/views/controls/menu/menu_controller.cc
+++ b/ui/views/controls/menu/menu_controller.cc
@@ -1194,7 +1194,9 @@ void MenuController::StartDrag(SubmenuView* source,
 }
 
 void MenuController::OnKeyDown(ui::KeyboardCode key_code) {
-  DCHECK(blocking_run_);
+  // Do not process while performing drag-and-drop
+  if (!blocking_run_)
+    return;
 
   switch (key_code) {
     case ui::VKEY_UP:
@@ -2263,6 +2265,9 @@ void MenuController::AcceptOrSelect(MenuItemView* parent,
 }
 
 void MenuController::SelectByChar(base::char16 character) {
+  // Do not process while performing drag-and-drop
+  if (!blocking_run_)
+    return;
   if (!character)
     return;