Remove ui::TextInputClient::GetAttachedWindow

ui/views/ime/input_method_bridge.cc

Index: ui/views/ime/input_method_bridge.cc
diff --git a/ui/views/ime/input_method_bridge.cc b/ui/views/ime/input_method_bridge.cc
index 5fc7fde3d77e7a0f36850ac2d3e1ad85b6e6c06c..3056ea7459b299a527fc51decdd602bdc2d8b7cb 100644
--- a/ui/views/ime/input_method_bridge.cc
+++ b/ui/views/ime/input_method_bridge.cc
@@ -210,12 +210,6 @@ void InputMethodBridge::InsertChar(base::char16 ch, int flags) {
     client->InsertChar(ch, flags);
 }
 
-gfx::NativeWindow InputMethodBridge::GetAttachedWindow() const {
-  TextInputClient* client = GetTextInputClient();
-  return client ?
-      client->GetAttachedWindow() : static_cast<gfx::NativeWindow>(NULL);
-}
-
 ui::TextInputType InputMethodBridge::GetTextInputType() const {
   TextInputClient* client = GetTextInputClient();
   return client ? client->GetTextInputType() : ui::TEXT_INPUT_TYPE_NONE;