Remove the 2-level input method system & InputMethodBridge.

ui/views/widget/native_widget_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/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
@@ skipping 195 matching lines @@
 
 void NativeWidgetMac::ReleaseCapture() {
   if (bridge_)
     bridge_->ReleaseCapture();
 }
 
 bool NativeWidgetMac::HasCapture() const {
   return bridge_ && bridge_->HasCapture();
 }
 
-InputMethod* NativeWidgetMac::CreateInputMethod() {
-  return bridge_ ? bridge_->CreateInputMethod() : NULL;
-}
-
-internal::InputMethodDelegate* NativeWidgetMac::GetInputMethodDelegate() {
-  return bridge_.get();
-}
-
-ui::InputMethod* NativeWidgetMac::GetHostInputMethod() {
-  return bridge_ ? bridge_->GetHostInputMethod() : NULL;
+ui::InputMethod* NativeWidgetMac::GetInputMethod() {
+  return bridge_ ? bridge_->GetInputMethod() : NULL;
 }
 
 void NativeWidgetMac::CenterWindow(const gfx::Size& size) {
   SetSize(
       BridgedNativeWidget::GetWindowSizeForClientSize(GetNativeWindow(), size));
   // Note that this is not the precise center of screen, but it is the standard
   // location for windows like dialogs to appear on screen for Mac.
   // TODO(tapted): If there is a parent window, center in that instead.
   [GetNativeWindow() center];
 }
@@ skipping 454 matching lines @@
   [[ViewsNSWindowCloseAnimator alloc] initWithWindow:window];
 }
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   [window_ close];
   [animation_ setDelegate:nil];
   [self release];
 }
 
 @end