Change NeedKeyCB to use std::vector.

media/mp4/mp4_stream_parser.cc

Index: media/mp4/mp4_stream_parser.cc
diff --git a/media/mp4/mp4_stream_parser.cc b/media/mp4/mp4_stream_parser.cc
index fc4ee8abd1a20659b0e52100a115bae7172d43c3..51ed7566a8dbfeaf193e5efe684a0c396d0b743f 100644
--- a/media/mp4/mp4_stream_parser.cc
+++ b/media/mp4/mp4_stream_parser.cc
@@ -339,14 +339,14 @@ void MP4StreamParser::EmitNeedKeyIfNecessary(
   for (size_t i = 0; i < headers.size(); i++)
     total_size += headers[i].raw_box.size();
 
-  scoped_ptr<uint8[]> init_data(new uint8[total_size]);
+  std::vector<uint8> init_data(total_size);
   size_t pos = 0;
   for (size_t i = 0; i < headers.size(); i++) {
-    memcpy(&init_data.get()[pos], &headers[i].raw_box[0],
+    memcpy(&init_data[pos], &headers[i].raw_box[0],
            headers[i].raw_box.size());
     pos += headers[i].raw_box.size();
   }
-  need_key_cb_.Run(kMp4InitDataType, init_data.Pass(), total_size);
+  need_key_cb_.Run(kMp4InitDataType, init_data);
 }
 
 bool MP4StreamParser::PrepareAVCBuffer(