[arc-intents] Properly qualify API-generated page transitions.

ash/mus/shell_delegate_mus.cc

 // Copyright 2016 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/mus/shell_delegate_mus.h"
 
 #include <utility>
 
 #include "ash/common/gpu_support_stub.h"
 #include "ash/common/media_delegate.h"
@@ skipping 137 matching lines @@
 
 void ShellDelegateMus::Exit() {
   NOTIMPLEMENTED();
 }
 
 keyboard::KeyboardUI* ShellDelegateMus::CreateKeyboardUI() {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
-void ShellDelegateMus::OpenUrl(const GURL& url) {
+void ShellDelegateMus::OpenUrlFromArc(const GURL& url) {
   NOTIMPLEMENTED();
 }
 
 app_list::AppListPresenter* ShellDelegateMus::GetAppListPresenter() {
   return app_list_presenter_.get();
 }
 
 ShelfDelegate* ShellDelegateMus::CreateShelfDelegate(ShelfModel* model) {
   NOTIMPLEMENTED();
   return nullptr;
@@ skipping 48 matching lines @@
   NOTIMPLEMENTED();
   return base::string16();
 }
 
 gfx::Image ShellDelegateMus::GetDeprecatedAcceleratorImage() const {
   NOTIMPLEMENTED();
   return gfx::Image();
 }
 
 }  // namespace ash