media: Add out-of-line copy ctors for complex classes.

This patch adds out of line copy constructors for classes that our
clang-plugin considers heavy. This is an effort to enable copy
constructor checks by default.

BUG=436357
R=dalecurtis@chromium.org, dcheng@chromium.org, thakis@chromium.org

Review URL: https://codereview.chromium.org/1731403002

Cr-Commit-Position: refs/heads/master@{#377967}

4 files changed, 6 insertions, 0 deletions

diff --git a/media/formats/webm/tracks_builder.cc b/media/formats/webm/tracks_builder.cc
index 6b2aaea..458f522 100644
--- a/media/formats/webm/tracks_builder.cc
+++ b/media/formats/webm/tracks_builder.cc
@@ -294,6 +294,8 @@ TracksBuilder::Track::Track(int track_num,
   }
 }
 
+TracksBuilder::Track::Track(const Track& other) = default;
+
 int TracksBuilder::Track::GetSize() const {
   return MasterElementSize(kWebMIdTrackEntry, GetPayloadSize());
 }
diff --git a/media/formats/webm/tracks_builder.h b/media/formats/webm/tracks_builder.h
index dc0283e..41d0938 100644
--- a/media/formats/webm/tracks_builder.h
+++ b/media/formats/webm/tracks_builder.h
@@ -83,6 +83,7 @@ class TracksBuilder {
           int audio_channels,
           double audio_sampling_frequency,
           bool allow_invalid_values);
+    Track(const Track& other);
 
     int GetSize() const;
     void Write(uint8_t** buf, int* buf_size) const;
diff --git a/media/formats/webm/webm_cluster_parser.cc b/media/formats/webm/webm_cluster_parser.cc
index e4fb5bb..21c1895 100644
--- a/media/formats/webm/webm_cluster_parser.cc
+++ b/media/formats/webm/webm_cluster_parser.cc
@@ -598,6 +598,8 @@ WebMClusterParser::Track::Track(int track_num,
          default_duration_ > base::TimeDelta());
 }
 
+WebMClusterParser::Track::Track(const Track& other) = default;
+
 WebMClusterParser::Track::~Track() {}
 
 DecodeTimestamp WebMClusterParser::Track::GetReadyUpperBound() {
diff --git a/media/formats/webm/webm_cluster_parser.h b/media/formats/webm/webm_cluster_parser.h
index 3976cfa..c719515 100644
--- a/media/formats/webm/webm_cluster_parser.h
+++ b/media/formats/webm/webm_cluster_parser.h
@@ -55,6 +55,7 @@ class MEDIA_EXPORT WebMClusterParser : public WebMParserClient {
           bool is_video,
           base::TimeDelta default_duration,
           const scoped_refptr<MediaLog>& media_log);
+    Track(const Track& other);
     ~Track();
 
     int track_num() const { return track_num_; }