Revert "Ensure that MP3, FLAC, and PCM are not supported for MediaSou…

…rce." (youtube#2005)

Reverts youtube#1359

b/297060983

cobalt/media/BUILD.gn

@@ -124,7 +124,6 @@ target(gtest_target_type, "media_test") {
     "base/decoder_buffer_cache_test.cc",
     "bidirectional_fit_reuse_allocator_test.cc",
     "file_data_source_test.cc",
-    "media_module_test.cc",
     "progressive/demuxer_extension_wrapper_test.cc",
     "progressive/mock_data_source_reader.h",
     "progressive/mp4_map_unittest.cc",

cobalt/media/media_module.cc

@@ -121,8 +121,8 @@ class CanPlayTypeHandlerStarboard : public CanPlayTypeHandler {
     // progressive.
     SbMediaSupportType support_type;
     media::FormatSupportQueryMetrics metrics;
-    if (strstr(mime_type.c_str(), "video/mp4") == NULL &&
-        strstr(mime_type.c_str(), "application/x-mpegURL") == NULL) {
+    if (strstr(mime_type.c_str(), "video/mp4") == 0 &&
+        strstr(mime_type.c_str(), "application/x-mpegURL") == 0) {
       support_type = kSbMediaSupportTypeNotSupported;
     } else {
       support_type = CanPlayType(mime_type, "");
@@ -135,16 +135,8 @@ class CanPlayTypeHandlerStarboard : public CanPlayTypeHandler {
   SbMediaSupportType CanPlayAdaptive(
       const std::string& mime_type,
       const std::string& key_system) const override {
-    SbMediaSupportType support_type;
     media::FormatSupportQueryMetrics metrics;
-    // Only mp4 and webm videos are supported for adaptive playback in Cobalt;
-    // any other containers can be immediately rejected.
-    if (strstr(mime_type.c_str(), "video/mp4") == NULL &&
-        strstr(mime_type.c_str(), "video/webm") == NULL) {
-      support_type = kSbMediaSupportTypeNotSupported;
-    } else {
-      support_type = CanPlayType(mime_type, key_system);
-    }
+    SbMediaSupportType support_type = CanPlayType(mime_type, key_system);
     metrics.RecordAndLogQuery("MediaSource::IsTypeSupported", mime_type,
                               key_system, support_type);
     return support_type;