Refactoring for the InputMethod & InputMethodDelegate interfaces.

ui/base/ime/input_method_base_unittest.cc

Index: ui/base/ime/input_method_base_unittest.cc
diff --git a/ui/base/ime/input_method_base_unittest.cc b/ui/base/ime/input_method_base_unittest.cc
index f8c45bc2dc31b03b7d7f90c0ae9895c7aca20070..0b619c2ef55913fe87f8ad64bbd4dd1fc32b5eb0 100644
--- a/ui/base/ime/input_method_base_unittest.cc
+++ b/ui/base/ime/input_method_base_unittest.cc
@@ -143,7 +143,7 @@ class MockInputMethodBase : public InputMethodBase {
       InputMethod::NativeEventResult* result) override {
     return false;
   }
-  bool DispatchKeyEvent(const ui::KeyEvent&) override { return false; }
+  void DispatchKeyEvent(ui::KeyEvent*) override {}
   void OnCaretBoundsChanged(const TextInputClient* client) override {}
   void CancelComposition(const TextInputClient* client) override {}
   void OnInputLocaleChanged() override {}