Declare kAppendWholeFile as constexpr

media/test/mock_media_source.cc

Index: media/test/mock_media_source.cc
diff --git a/media/test/mock_media_source.cc b/media/test/mock_media_source.cc
index b7d904b58d42f3f84ca0a5d3e72b14736e4e9d02..8479cdd3d04b1b23ceb96aecfa93ab5753598313 100644
--- a/media/test/mock_media_source.cc
+++ b/media/test/mock_media_source.cc
@@ -11,7 +11,6 @@
 namespace media {
 
 constexpr char kSourceId[] = "SourceId";
-const size_t kAppendWholeFile = std::numeric_limits<size_t>::max();
 
 MockMediaSource::MockMediaSource(const std::string& filename,
                                  const std::string& mimetype,
@@ -30,8 +29,8 @@ MockMediaSource::MockMediaSource(const std::string& filename,
   if (initial_append_size_ == kAppendWholeFile)
     initial_append_size_ = file_data_->data_size();
 
-  DCHECK_GT(initial_append_size_, 0u);
-  DCHECK_LE(initial_append_size_, file_data_->data_size());
+  CHECK_GT(initial_append_size_, 0u);
+  CHECK_LE(initial_append_size_, file_data_->data_size());
 }
 
 MockMediaSource::~MockMediaSource() {}
@@ -48,7 +47,7 @@ void MockMediaSource::Seek(base::TimeDelta seek_time,
   chunk_demuxer_->ResetParserState(kSourceId, base::TimeDelta(),
                                    kInfiniteDuration, &last_timestamp_offset_);
 
-  DCHECK_LT(new_position, file_data_->data_size());
+  CHECK_LT(new_position, file_data_->data_size());
   current_position_ = new_position;
 
   AppendData(seek_append_size);
@@ -59,9 +58,9 @@ void MockMediaSource::Seek(base::TimeDelta seek_time) {
 }
 
 void MockMediaSource::AppendData(size_t size) {
-  DCHECK(chunk_demuxer_);
-  DCHECK_LT(current_position_, file_data_->data_size());
-  DCHECK_LE(current_position_ + size, file_data_->data_size());
+  CHECK(chunk_demuxer_);
+  CHECK_LT(current_position_, file_data_->data_size());
+  CHECK_LE(current_position_ + size, file_data_->data_size());
 
   ASSERT_TRUE(chunk_demuxer_->AppendData(
       kSourceId, file_data_->data() + current_position_, size,
@@ -170,7 +169,7 @@ ChunkDemuxer::Status MockMediaSource::AddId() {
 void MockMediaSource::OnEncryptedMediaInitData(
     EmeInitDataType init_data_type,
     const std::vector<uint8_t>& init_data) {
-  DCHECK(!init_data.empty());
+  CHECK(!init_data.empty());
   CHECK(!encrypted_media_init_data_cb_.is_null());
   encrypted_media_init_data_cb_.Run(init_data_type, init_data);
 }