Get rid of unused callbacks from ui::InputMethodObserver

chrome/browser/chromeos/input_method/textinput_test_helper.cc

 // Copyright (c) 2013 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 "ash/shell.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chromeos/input_method/textinput_test_helper.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 76 matching lines @@
   if (waiting_type_ == WAIT_ON_FOCUS)
     base::MessageLoop::current()->Quit();
 }
 
 void TextInputTestHelper::OnBlur() {
   focus_state_ = false;
   if (waiting_type_ == WAIT_ON_BLUR)
     base::MessageLoop::current()->Quit();
 }
 
-void TextInputTestHelper::OnUntranslatedIMEMessage(
-  const base::NativeEvent& event) {
-}
-
 void TextInputTestHelper::OnCaretBoundsChanged(
     const ui::TextInputClient* client) {
   gfx::Range text_range;
   if (!GetTextInputClient()->GetTextRange(&text_range) ||
       !GetTextInputClient()->GetTextFromRange(text_range, &surrounding_text_) ||
       !GetTextInputClient()->GetSelectionRange(&selection_range_))
       return;
   if (waiting_type_ == WAIT_ON_CARET_BOUNDS_CHANGED)
     base::MessageLoop::current()->Quit();
 }
 
-void TextInputTestHelper::OnInputLocaleChanged() {
-}
-
 void TextInputTestHelper::OnTextInputStateChanged(
     const ui::TextInputClient* client) {
 }
 
 void TextInputTestHelper::WaitForTextInputStateChanged(
     ui::TextInputType expected_type) {
   CHECK_EQ(NO_WAIT, waiting_type_);
   waiting_type_ = WAIT_ON_TEXT_INPUT_TYPE_CHANGED;
   while (latest_text_input_type_ != expected_type)
     content::RunMessageLoop();
@@ skipping 76 matching lines @@
   mouse_event.y = rect.CenterPoint().y();
   mouse_event.clickCount = 1;
   tab->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
 
   mouse_event.type = blink::WebInputEvent::MouseUp;
   tab->GetRenderViewHost()->ForwardMouseEvent(mouse_event);
   return true;
 }
 
 } // namespace chromeos