Windows component builds raise warning LNK4217 during the link step of the media_unittests and media_mojo_unittests targets:

[1/3] LINK media.service.exe media.service.exe.pdb
FAILED: media.service.exe media.service.exe.pdb
C:/python_27_amd64/files/python.exe ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64 False link.exe /nologo /OUT:./media.service.exe /PDB:./media.service.exe.pdb @./media.service.exe.rsp
LINK : ./media.service.exe not found or not built by the last incremental link; performing full link
main.obj : warning LNK4217: locally defined symbol ?CreateMediaServiceForTesting@media@@YA?AV?$unique_ptr@VService@service_manager@@U?$default_delete@VService@service_manager@@@std@@@std@@XZ (class std::unique_ptr<class service_manager::Service,struct std::default_delete<class service_manager::Service> > __cdecl media::CreateMediaServiceForTesting(void)) imported in function ServiceMain

FAILED: media_mojo_unittests.exe media_mojo_unittests.exe.pdb
C:/python_27_amd64/files/python.exe ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64 False link.exe /nologo /OUT:./media_mojo_unittests.exe /PDB:./media_mojo_unittests.exe.pdb @./media_mojo_unittests.exe.rsp
LINK : ./media_mojo_unittests.exe not found or not built by the last incremental link; performing full link
mojo_audio_decoder_unittest.obj : warning LNK4217: locally defined symbol ??0MojoAudioDecoderService@media@@QEAA@V?$WeakPtr@VMojoCdmServiceContext@media@@@base@@V?$unique_ptr@VAudioDecoder@media@@U?$default_delete@VAudioDecoder@media@@@std@@@std@@@Z (public: __cdecl media::MojoAudioDecoderService::MojoAudioDecoderService(class base::WeakPtr<class media::MojoCdmServiceContext>,class std::unique_ptr<class media::AudioDecoder,struct std::default_delete<class media::AudioDecoder> >)) imported in function "class std::unique_ptr<class media::MojoAudioDecoderService,struct std::default_delete<class media::MojoAudioDecoderService> > __cdecl base::MakeUnique<class media::MojoAudioDecoderService,class base::WeakPtr<class media::MojoCdmServiceContext>,class std::unique_ptr<class testing::StrictMock<class media::MockAudioDecoder>,struct std::default_delete<class testing::StrictMock<class media::MockAudioDecoder> > > >(class base::WeakPtr<class media::MojoCdmServiceContext> &&,class std::unique_ptr<class testing::StrictMock<class media::MockAudioDecoder>,struct std::default_delete<class testing::StrictMock<class media::MockAudioDecoder> > > &&)" (??$MakeUnique@VMojoAudioDecoderService@media@@V?$WeakPtr@VMojoCdmServiceContext@media@@@base@@V?$unique_ptr@V?$StrictMock@VMockAudioDecoder@media@@@testing@@U?$default_delete@V?$StrictMock@VMockAudioDecoder@media@@@testing@@@std@@@std@@@base@@YA?AV?$unique_ptr@VMojoAudioDecoderService@media@@U?$default_delete@VMojoAudioDecoderService@media@@@std@@@std@@$$QEAV?$WeakPtr@VMojoCdmServiceContext@media@@@0@$$QEAV?$unique_ptr@V?$StrictMock@VMockAudioDecoder@media@@@testing@@U?$default_delete@V?$StrictMock@VMockAudioDecoder@media@@@testing@@@std@@@2@@Z)

FAILED: media_unittests.exe media_unittests.exe.pdb
C:/python_27_amd64/files/python.exe ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64 False link.exe /nologo /OUT:./media_unittests.exe /PDB:./media_unittests.exe.pdb @./media_unittests.exe.rsp
LINK : ./media_unittests.exe not found or not built by the last incremental link; performing full link
mojo_audio_decoder_unittest.obj : warning LNK4217: locally defined symbol ??0MojoAudioDecoderService@media@@QEAA@V?$WeakPtr@VMojoCdmServiceContext@media@@@base@@V?$unique_ptr@VAudioDecoder@media@@U?$default_delete@VAudioDecoder@media@@@std@@@std@@@Z (public: __cdecl media::MojoAudioDecoderService::MojoAudioDecoderService(class base::WeakPtr<class media::MojoCdmServiceContext>,class std::unique_ptr<class media::AudioDecoder,struct std::default_delete<class media::AudioDecoder> >)) imported in function "class std::unique_ptr<class media::MojoAudioDecoderService,struct std::default_delete<class media::MojoAudioDecoderService> > __cdecl base::MakeUnique<class media::MojoAudioDecoderService,class base::WeakPtr<class media::MojoCdmServiceContext>,class std::unique_ptr<class testing::StrictMock<class media::MockAudioDecoder>,struct std::default_delete<class testing::StrictMock<class media::MockAudioDecoder> > > >(class base::WeakPtr<class media::MojoCdmServiceContext> &&,class std::unique_ptr<class testing::StrictMock<class media::MockAudioDecoder>,struct std::default_delete<class testing::StrictMock<class media::MockAudioDecoder> > > &&)" (??$MakeUnique@VMojoAudioDecoderService@media@@V?$WeakPtr@VMojoCdmServiceContext@media@@@base@@V?$unique_ptr@V?$StrictMock@VMockAudioDecoder@media@@@testing@@U?$default_delete@V?$StrictMock@VMockAudioDecoder@media@@@testing@@@std@@@std@@@base@@YA?AV?$unique_ptr@VMojoAudioDecoderService@media@@U?$default_delete@VMojoAudioDecoderService@media@@@std@@@std@@$$QEAV?$WeakPtr@VMojoCdmServiceContext@media@@@0@$$QEAV?$unique_ptr@V?$StrictMock@VMockAudioDecoder@media@@@testing@@U?$default_delete@V?$StrictMock@VMockAudioDecoder@media@@@testing@@@std@@@2@@Z)