Preliminary upload of win native build scripts

win_scripts/clean.bat

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+# run from within out/Default or wherever you put your build, or cd there first
+# i.e. cd /home/alex/bin/chromium-dev/
+
+find . -name "*deps*" -delete
+find . -name "*TOC*" -delete
+rm -r pyproto
+rm -r obj
+rm -r newlib_pnacl_nonsfi
+rm -r newlib_pnacl
+rm -r nacl_bootstrap_x64
+rm -r irt_x64
+rm -r glibc_x64
+rm -r gen
+rm -r etc
+rm -r clang_newlib_x64
+rm -r thinlto-cache
+rm -r fontconfig_caches
+
+exit 0

win_scripts/setup.bat

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+## Windows native build setup script.
+# Copyright (c) 2022 Alex313031. 
+
+mkdir C:\chromium\src\out\thorium
+
+copy ..\build\* C:\chromium\src\build
+copy ..\chrome\* C:\chromium\src\chrome
+copy ..\components\* C:\chromium\src\components
+copy ..\content\* C:\chromium\src\content
+copy ..\media\* C:\chromium\src\media
+copy ..\net\* C:\chromium\src\net
+copy ..\sandbox\* C:\chromium\src\sandbox
+copy ..\third_party\* C:\chromium\src\third_party
+copy ..\tools\* C:\chromium\src\tools
+copy ..\ui\* C:\chromium\src\ui
+copy ..\v8\* C:\chromium\src\v8
+copy ..\content_shell\* C:\chromium\src\out\thorium
+copy ..\pak_src\bin\pak-win\* C:\chromium\src\out\thorium
+
+cd C:\chromium\src
+
+exit 0

win_scripts/trunk.bat

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+## Windows native build trunk script.
+# Copyright (c) 2022 Alex313031. 
+
+cd C:\chromium\src\v8 &&
+
+git checkout -f origin/main &&
+
+cd C:\chromium\src &&
+
+git checkout -f origin/main &&
+
+git rebase-update &&
+
+git fetch --tags &&
+
+gclient sync -D &&
+
+gclient sync --with_branch_heads --with_tags &&
+
+gclient runhooks &&
+
+python tools\update_pgo_profiles.py --target=win64 update --gs-url-base=chromium-optimization-profiles/pgo_profiles &&
+
+exit 0