Remove the 2-level input method system & InputMethodBridge.

ui/views/test/widget_test_mac.mm

Index: ui/views/test/widget_test_mac.mm
diff --git a/ui/views/test/widget_test_mac.mm b/ui/views/test/widget_test_mac.mm
index c6608aeba846fc08fbea2f3257d175b15a281f93..628655f58de6c4764d1d754517f3695a9d359fc8 100644
--- a/ui/views/test/widget_test_mac.mm
+++ b/ui/views/test/widget_test_mac.mm
@@ -8,6 +8,7 @@
 
 #import "base/mac/scoped_nsobject.h"
 #import "base/mac/scoped_objc_class_swizzler.h"
+#import "ui/views/cocoa/bridged_native_widget.h"
 #include "ui/views/widget/root_view.h"
 
 @interface IsKeyWindowDonor : NSObject
@@ -108,5 +109,11 @@ scoped_ptr<WidgetTest::FakeActivation> WidgetTest::FakeWidgetIsActiveAlways() {
   return make_scoped_ptr(new FakeActivationMac);
 }
 
+// static
+ui::internal::InputMethodDelegate* WidgetTest::GetInputMethodDelegateForWidget(
+    Widget* widget) {
+  return NativeWidgetMac::GetBridgeForNativeWindow(widget->GetNativeWindow());
+}
+
 }  // namespace test
 }  // namespace views