Chromecast: generate IPC ParamTraits implementations for enums.

chromecast/common/media/cma_param_traits.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 "chromecast/common/media/cma_param_traits.h"
 
 #include <vector>
 
 #include "chromecast/common/media/cma_param_traits_macros.h"
 #include "content/public/common/common_param_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/video_decoder_config.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 
+// Note(gunsch): these are currently defined in content/, but not declared in
+// content/public/. These headers need to be forward-declared for chromecast/,
+// but without new implementations linked in.
+// The correct long-term fix is to use Mojo instead of the content/ IPCs.
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::ChannelLayout,
+                              media::ChannelLayout::CHANNEL_LAYOUT_NONE,
+                              media::ChannelLayout::CHANNEL_LAYOUT_MAX)
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(media::VideoCodecProfile,
+                              media::VIDEO_CODEC_PROFILE_MIN,
+                              media::VIDEO_CODEC_PROFILE_MAX)
+IPC_ENUM_TRAITS_MAX_VALUE(media::VideoFrame::Format,
+                          media::VideoFrame::FORMAT_MAX)
+
 namespace IPC {
 
 void ParamTraits<media::AudioDecoderConfig>::Write(
     Message* m, const media::AudioDecoderConfig& p) {
   ParamTraits<media::AudioCodec>::Write(m, p.codec());
   ParamTraits<media::SampleFormat>::Write(m, p.sample_format());
   ParamTraits<media::ChannelLayout>::Write(m, p.channel_layout());
   ParamTraits<int>::Write(m, p.samples_per_second());
   ParamTraits<bool>::Write(m, p.is_encrypted());
   std::vector<uint8> extra_data;
@@ skipping 87 matching lines @@
                                  is_encrypted);
   return true;
 }
 
 void ParamTraits<media::VideoDecoderConfig>::Log(
     const media::VideoDecoderConfig& p, std::string* l) {
   l->append(base::StringPrintf("<VideoDecoderConfig>"));
 }
 
 }  // namespace IPC