Remove the 2-level input method system & InputMethodBridge.

ui/views/test/widget_test_mac.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/test/widget_test.h"
 
 #include <Cocoa/Cocoa.h>
 
 #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
 @end
 
 @implementation IsKeyWindowDonor
 - (BOOL)isKeyWindow {
   return YES;
 }
 @end
@@ skipping 80 matching lines @@
 // static
 ui::EventProcessor* WidgetTest::GetEventProcessor(Widget* widget) {
   return static_cast<internal::RootView*>(widget->GetRootView());
 }
 
 // static
 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