Combine the WM_CHAR with WM_KEY* for key event flow.

ui/base/ime/input_method_win.h

Index: ui/base/ime/input_method_win.h
diff --git a/ui/base/ime/input_method_win.h b/ui/base/ime/input_method_win.h
index 4814f269c2fe96a397f965dcf08641c7eba1428e..7cc347a7a9f889c47efe39045dc4b679cefb605c 100644
--- a/ui/base/ime/input_method_win.h
+++ b/ui/base/ime/input_method_win.h
@@ -129,10 +129,6 @@ class UI_BASE_IME_EXPORT InputMethodWin : public InputMethodBase {
   // composition.
   HWND composing_window_handle_;
 
-  // Set to true to suppress the next WM_CHAR, when the WM_KEYDOWN gets stopped
-  // propagation (e.g. triggered an accelerator).
-  bool suppress_next_char_;
-
   DISALLOW_COPY_AND_ASSIGN(InputMethodWin);
 };