[WebMIDI] MIDIManager::create should return non-null object.

media/midi/midi_manager.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 "media/midi/midi_manager.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 
 namespace media {
 
 #if !defined(OS_MACOSX) && !defined(OS_WIN)
 // TODO(crogers): implement MIDIManager for other platforms.
 MIDIManager* MIDIManager::Create() {
-  return NULL;
+  return new MIDIManager;
 }
 #endif
 
 MIDIManager::MIDIManager()
     : initialized_(false) {
 }
 
 MIDIManager::~MIDIManager() {
 }
 
@@ skipping 10 matching lines @@
   return initialized_;
 }
 
 void MIDIManager::EndSession(MIDIManagerClient* client) {
   base::AutoLock auto_lock(clients_lock_);
   ClientList::iterator i = clients_.find(client);
   if (i != clients_.end())
     clients_.erase(i);
 }
 
+void MIDIManager::DispatchSendMIDIData(MIDIManagerClient* client,
+                                       uint32 port_index,
+                                       const std::vector<uint8>& data,
+                                       double timestamp) {
+  NOTREACHED();
+}
+
+bool MIDIManager::Initialize() {
+  return false;
+}
+
 void MIDIManager::AddInputPort(const MIDIPortInfo& info) {
   input_ports_.push_back(info);
 }
 
 void MIDIManager::AddOutputPort(const MIDIPortInfo& info) {
   output_ports_.push_back(info);
 }
 
 void MIDIManager::ReceiveMIDIData(
     uint32 port_index,
     const uint8* data,
     size_t length,
     double timestamp) {
   base::AutoLock auto_lock(clients_lock_);
 
   for (ClientList::iterator i = clients_.begin(); i != clients_.end(); ++i)
     (*i)->ReceiveMIDIData(port_index, data, length, timestamp);
 }
 
 }  // namespace media