Fix a crash which occurs while translating the windows message WM_DEADCHAR to our events format.

ui/events/win/events_win.cc

Index: ui/events/win/events_win.cc
diff --git a/ui/events/win/events_win.cc b/ui/events/win/events_win.cc
index 6365c76b673900248bc06b8cef96849a0d87ddfa..9434b2b4e390dc60d2893eb3d16c3d0e4a25e2ec 100644
--- a/ui/events/win/events_win.cc
+++ b/ui/events/win/events_win.cc
@@ -151,6 +151,10 @@ EventType EventTypeFromNative(const base::NativeEvent& native_event) {
     case WM_SYSKEYDOWN:
     case WM_CHAR:
       return ET_KEY_PRESSED;
+    // The WM_DEADCHAR message is posted to the window with the keyboard focus
+    // when a WM_KEYUP message is translated. This happens for special keyboard
+    // sequences.
+    case WM_DEADCHAR:
     case WM_KEYUP:
     case WM_SYSKEYUP:
       return ET_KEY_RELEASED;