Web MIDI Linux: Fix enumeration when OPL3 devices are present, and fix manufacturer extraction bugs

media/midi/midi_manager_alsa_unittest.cc

 // Copyright 2015 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_alsa.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 
@@ skipping 33 matching lines @@
   ASSERT_EQ("Keystation Mini 32",
             MidiManagerAlsa::AlsaRawmidi::ExtractManufacturerString(
                 "", "", "", "Keystation Mini 32",
                 "Keystation Mini 32 Keystation Mini 32 at"
                 " usb-0000:00:14.0-2.4.4, full speed"));
   ASSERT_EQ("", MidiManagerAlsa::AlsaRawmidi::ExtractManufacturerString(
                     "", "", "", "Serial MIDI (UART16550A)",
                     "Serial MIDI (UART16550A) [Soundcanvas] at 0x3f8, irq 4"));
   ASSERT_EQ("", MidiManagerAlsa::AlsaRawmidi::ExtractManufacturerString(
                     "", "", "", "VirMIDI", "Virtual MIDI Card 1"));
+  ASSERT_EQ("C-Media Electronics Inc",
+            MidiManagerAlsa::AlsaRawmidi::ExtractManufacturerString(
+                "", "0x13f6", "C-Media Electronics Inc", "C-Media CMI8738 MIDI",
+                "C-Media CMI8738 (model 55) at 0xd000, irq 19"));
+  ASSERT_EQ("C-Media Electronics Inc",
+            MidiManagerAlsa::AlsaRawmidi::ExtractManufacturerString(
+                "", "0x13f6", "C-Media Electronics Inc", "C-Media CMI8738 FM",
+                "C-Media CMI8738 (model 55) at 0xd000, irq 19"));
 }
 
 TEST(MidiManagerAlsaTest, JSONPortMetadata) {
   snd_seq_addr_t address;
   address.client = 1;
   address.port = 2;
 
   MidiManagerAlsa::AlsaPortMetadata input(
       "path", "bus", "id", &address, "client_name", "port_name", "card_name",
       "card_longname", MidiManagerAlsa::AlsaPortMetadata::Type::kInput);
@@ skipping 18 matching lines @@
       "name\","
       "\"clientAddr\":1,\"clientName\":\"client_name\",\"id\":\"id\",\"path\":"
       "\"path\","
       "\"portAddr\":2,\"portName\":\"port_name\",\"type\":\"output\"}",
       output.JSONValue());
   ASSERT_EQ("747E553D40F8388A0C1C51261B82869D5EFA8A54860AAFB2F4F7437744982495",
             output.OpaqueKey());
 }
 
 }  // namespace media