Add multiline braille support.

chrome/browser/extensions/api/braille_display_private/stub_braille_controller.cc

 // Copyright 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 "chrome/browser/extensions/api/braille_display_private/stub_braille_controller.h"
 
 namespace extensions {
 namespace api {
 namespace braille_display_private {
 
 StubBrailleController::StubBrailleController() {
 }
 
 std::unique_ptr<DisplayState> StubBrailleController::GetDisplayState() {
   return std::unique_ptr<DisplayState>(new DisplayState);
 }
 
-void StubBrailleController::WriteDots(const std::vector<char>& cells) {
-}
+void StubBrailleController::WriteDots(const std::vector<char>& cells,
+                                      unsigned int cols,
+                                      unsigned int rows) {}
 
 void StubBrailleController::AddObserver(BrailleObserver* observer) {
 }
 
 void StubBrailleController::RemoveObserver(BrailleObserver* observer) {
 }
 
 StubBrailleController* StubBrailleController::GetInstance() {
   return base::Singleton<
       StubBrailleController,
       base::LeakySingletonTraits<StubBrailleController>>::get();
 }
 
 }  // namespace braille_display_private
 }  // namespace api
 }  // namespace extensions