Update comments about ISO spec on aac parser.

media/formats/mp4/aac_unittest.cc

 // Copyright 2014 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 <string>
 
 #include "media/base/mock_media_log.h"
 #include "media/formats/mp4/aac.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 92 matching lines @@
                          AudioChannelLayoutLog("3")));
   EXPECT_TRUE(Parse(data));
   EXPECT_EQ(aac_.GetOutputSamplesPerSecond(false), 48000);
   EXPECT_EQ(aac_.GetOutputSamplesPerSecond(true), 48000);
   EXPECT_EQ(aac_.GetChannelLayout(false), CHANNEL_LAYOUT_STEREO);
 }
 
 // Test implicit SBR with mono channel config.
 // Mono channel layout should only be reported if SBR is not
 // specified. Otherwise stereo should be reported.
-// See ISO-14496-3 Section 1.6.6.1.2 for details about this special casing.
+// See ISO 14496-3:2005 Section 1.6.5.3 for details about this special casing.
 TEST_F(AACTest, ImplicitSBR_ChannelConfig0) {
   uint8 buffer[] = {0x13, 0x08};
   std::vector<uint8> data;
 
   data.assign(buffer, buffer + sizeof(buffer));
 
   EXPECT_MEDIA_LOG(AllOf(AudioProfileLog("mp4a.40.2"),
                          AudioSamplingFrequencyLog("24000"),
                          AudioExtensionSamplingFrequencyLog("0"),
                          AudioChannelLayoutLog("2")));
@@ skipping 171 matching lines @@
   EXPECT_MEDIA_LOG(AllOf(AudioProfileLog("mp4a.40.2"),
                          AudioSamplingFrequencyLog("64000"),
                          AudioExtensionSamplingFrequencyLog("64000"),
                          AudioChannelLayoutLog("3")));
   EXPECT_TRUE(Parse(data));
 }
 
 }  // namespace mp4
 
 }  // namespace media