diff --git a/media/filters/h264_bit_reader.h b/media/filters/h264_bit_reader.h
index de65886a1b..14c03240fa 100644
--- a/media/filters/h264_bit_reader.h
+++ b/media/filters/h264_bit_reader.h
@@ -25,8 +25,6 @@ class H264BitReader {
   // Initialize the reader to start reading at |data|, |size| being size
   // of |data| in bytes.
   // Return false on insufficient size of stream..
-  // TODO(posciak,fischman): consider replacing Initialize() with
-  // heap-allocating and creating bit readers on demand instead.
   bool Initialize(const uint8* data, off_t size);
 
   // Read |num_bits| next bits from stream and return in |*out|, first bit
diff --git a/media/filters/h264_parser.h b/media/filters/h264_parser.h
index d9d5223f6a..37d3a99229 100644
--- a/media/filters/h264_parser.h
+++ b/media/filters/h264_parser.h
@@ -111,7 +111,6 @@ struct H264PPS {
   bool entropy_coding_mode_flag;
   bool bottom_field_pic_order_in_frame_present_flag;
   int num_slice_groups_minus1;
-  // TODO(posciak): Slice groups not implemented, could be added at some point.
   int num_ref_idx_l0_default_active_minus1;
   int num_ref_idx_l1_default_active_minus1;
   bool weighted_pred_flag;
@@ -187,7 +186,7 @@ struct H264SliceHeader {
   int first_mb_in_slice;
   int slice_type;
   int pic_parameter_set_id;
-  int colour_plane_id;  // TODO(posciak): use this!  http://crbug.com/139878
+  int colour_plane_id;
   int frame_num;
   bool field_pic_flag;
   bool bottom_field_flag;
@@ -307,7 +306,6 @@ class H264Parser {
   // of the parsed structure in |*pps_id|/|*sps_id|.
   // To get a pointer to a given SPS/PPS structure, use GetSPS()/GetPPS(),
   // passing the returned |*sps_id|/|*pps_id| as parameter.
-  // TODO(posciak,fischman): consider replacing returning Result from Parse*()
   // methods with a scoped_ptr and adding an AtEOS() function to check for EOS
   // if Parse*() return NULL.
   Result ParseSPS(int* sps_id);
diff --git a/media/formats/mp2t/es_parser_h264.cc b/media/formats/mp2t/es_parser_h264.cc
index b4380b573a..c3482fb32a 100644
--- a/media/formats/mp2t/es_parser_h264.cc
+++ b/media/formats/mp2t/es_parser_h264.cc
@@ -223,8 +223,6 @@ bool EsParserH264::ParseInternal() {
         if (h264_parser_->ParseSliceHeader(nalu, &shdr) != H264Parser::kOk) {
           // Only accept an invalid SPS/PPS at the beginning when the stream
           // does not necessarily start with an SPS/PPS/IDR.
-          // TODO(damienv): Should be able to differentiate a missing SPS/PPS
-          // from a slice header parsing error.
           if (last_video_decoder_config_)
             return false;
         } else {
@@ -330,7 +328,7 @@ bool EsParserH264::UpdateVideoDecoderConfig(const H264SPS* sps) {
     return false;
   }
 
-  // TODO(damienv): a MAP unit can be either 16 or 32 pixels.
+  // TODO: a MAP unit can be either 16 or 32 pixels.
   // although it's 16 pixels for progressive non MBAFF frames.
   uint16 width = (sps->pic_width_in_mbs_minus1 + 1) * 16;
   uint16 height = (sps->pic_height_in_map_units_minus1 + 1) * 16;
diff --git a/media/formats/mp2t/mp2t_media_parser.cc b/media/formats/mp2t/mp2t_media_parser.cc
index 100ef35080..97dc372633 100644
--- a/media/formats/mp2t/mp2t_media_parser.cc
+++ b/media/formats/mp2t/mp2t_media_parser.cc
@@ -280,9 +280,8 @@ void Mp2tMediaParser::RegisterPmt(int program_number, int pmt_pid) {
 }
 
 void Mp2tMediaParser::RegisterPes(int pmt_pid,
-                              int pes_pid,
-                              int stream_type) {
-  // TODO(damienv): check there is no mismatch if the entry already exists.
+                                  int pes_pid,
+                                  int stream_type) {
   DVLOG(1) << "RegisterPes:"
            << " pes_pid=" << pes_pid
            << " stream_type=" << std::hex << stream_type << std::dec;
diff --git a/media/formats/mp2t/ts_packet.cc b/media/formats/mp2t/ts_packet.cc
index 8463c11e33..91b254f593 100644
--- a/media/formats/mp2t/ts_packet.cc
+++ b/media/formats/mp2t/ts_packet.cc
@@ -19,8 +19,6 @@ int TsPacket::Sync(const uint8* buf, int size) {
   for (; k < size; k++) {
     // Verify that we have 4 syncwords in a row when possible,
     // this should improve synchronization robustness.
-    // TODO(damienv): Consider the case where there is garbage
-    // between TS packets.
     bool is_header = true;
     for (int i = 0; i < 4; i++) {
       int idx = k + i * kPacketSize;
@@ -212,4 +210,3 @@ bool TsPacket::ParseAdaptationField(BitReader* bit_reader,
 
 }  // namespace mp2t
 }  // namespace media
-
diff --git a/media/formats/mp2t/ts_section_pes.cc b/media/formats/mp2t/ts_section_pes.cc
index 11d06450fa..79481731f1 100644
--- a/media/formats/mp2t/ts_section_pes.cc
+++ b/media/formats/mp2t/ts_section_pes.cc
@@ -286,7 +286,6 @@ bool TsSectionPes::ParseInternal(const uint8* raw_pes, int raw_pes_size) {
   }
 
   // Discard the rest of the PES packet header.
-  // TODO(damienv): check if some info of the PES packet header are useful.
   DCHECK_EQ(bit_reader.bits_available() % 8, 0);
   int pes_header_remaining_size = pes_header_data_length -
       (pes_header_start_size - bit_reader.bits_available() / 8);
diff --git a/media/formats/mp2t/ts_section_pmt.cc b/media/formats/mp2t/ts_section_pmt.cc
index 72b492aaa4..a5e7b0ec11 100644
--- a/media/formats/mp2t/ts_section_pmt.cc
+++ b/media/formats/mp2t/ts_section_pmt.cc
@@ -57,10 +57,6 @@ bool TsSectionPmt::ParsePsiSection(BitReader* bit_reader) {
   RCHECK(section_number == 0);
   RCHECK(last_section_number == 0);
 
-  // TODO(damienv):
-  // Verify that there is no mismatch between the program number
-  // and the program number that was provided in a PAT for the current PMT.
-
   // Read the end of the fixed length section.
   int pcr_pid;
   int program_info_length;
@@ -71,7 +67,6 @@ bool TsSectionPmt::ParsePsiSection(BitReader* bit_reader) {
   RCHECK(program_info_length < 1024);
 
   // Read the program info descriptor.
-  // TODO(damienv): check wether any of the descriptors could be useful.
   // Defined in section 2.6 of ISO-13818.
   RCHECK(bit_reader->SkipBits(8 * program_info_length));
 
@@ -97,7 +92,6 @@ bool TsSectionPmt::ParsePsiSection(BitReader* bit_reader) {
     pid_map.insert(std::pair<int, int>(pid_es, stream_type));
 
     // Read the ES info descriptors.
-    // TODO(damienv): check wether any of the descriptors could be useful.
     // Defined in section 2.6 of ISO-13818.
     RCHECK(bit_reader->SkipBits(8 * es_info_length));
   }
@@ -119,4 +113,3 @@ void TsSectionPmt::ResetPsiSection() {
 
 }  // namespace mp2t
 }  // namespace media
-
diff --git a/media/formats/mp2t/ts_section_pmt.h b/media/formats/mp2t/ts_section_pmt.h
index 86bbdd4124..7434699d63 100644
--- a/media/formats/mp2t/ts_section_pmt.h
+++ b/media/formats/mp2t/ts_section_pmt.h
@@ -17,7 +17,6 @@ class TsSectionPmt : public TsSectionPsi {
   // RegisterPesCb::Run(int pes_pid, int stream_type);
   // Stream type is defined in
   // "Table 2-34 – Stream type assignments" in H.222
-  // TODO(damienv): add the program number.
   typedef base::Callback<void(int, int)> RegisterPesCb;
 
   explicit TsSectionPmt(const RegisterPesCb& register_pes_cb);