cros: Bind hangup red button on remote controller to close web dialog

ui/web_dialogs/web_dialog_delegate.cc

 // Copyright (c) 2012 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/web_dialogs/web_dialog_delegate.h"
 
+#include "ui/base/accelerators/accelerator.h"
+
 namespace ui {
 
 std::string WebDialogDelegate::GetDialogName() const {
   return std::string();
 }
 
 void WebDialogDelegate::GetMinimumDialogSize(gfx::Size* size) const {
   GetDialogSize(size);
 }
 
@@ skipping 28 matching lines @@
     WindowOpenDisposition disposition,
     const gfx::Rect& initial_rect,
     bool user_gesture) {
   return false;
 }
 
 bool WebDialogDelegate::HandleShouldCreateWebContents() {
   return true;
 }
 
+std::vector<Accelerator> WebDialogDelegate::GetAccelerators() {
+  return std::vector<Accelerator>();
+}
+
+bool WebDialogDelegate::AcceleratorPressed(const Accelerator& accelerator) {
+  return false;
+}
+
 }  // namespace ui