Bug 41459: WebRTC fails to build under mingw (Part 2)

...audio_coding/codecs/isac/main/source/os_specific_inline.h

...libwebrtc/modules/desktop_capture/desktop_capture_types.h

...brtc/modules/desktop_capture/win/desktop_capture_utils.cc

.../libwebrtc/modules/video_capture/windows/device_info_ds.h

third_party/libwebrtc/rtc_base/platform_thread_types.cc

third_party/libwebrtc/rtc_base/socket.h

third_party/libwebrtc/rtc_base/system/file_wrapper.cc

third_party/libwebrtc/rtc_base/win/create_direct3d_device.h