diff --git a/bootstrap/win/win_tools.bat b/bootstrap/win/win_tools.bat
index 4449ad2c5..abcbcebce 100644
--- a/bootstrap/win/win_tools.bat
+++ b/bootstrap/win/win_tools.bat
@@ -67,156 +67,9 @@ set FIND_EXE=%SYSTEMROOT%\System32\find.exe
 :: (parens) are necessary, otherwise batch puts an extra space after 32.
 reg Query "HKLM\Hardware\Description\System\CentralProcessor\0" | %FIND_EXE% /i "x86" > NUL && (set OS_BITS=32) || (set OS_BITS=64)
 
-if not exist "%WIN_TOOLS_ROOT_DIR%\.git_bleeding_edge" (
-  set /p GIT_VERSION= <"%~dp0git_version.txt"
-) else (
-  set /p GIT_VERSION= <"%~dp0git_version_bleeding_edge.txt"
-)
-set GIT_VERSION=%GIT_VERSION%-%OS_BITS%
-
-set GIT_FETCH_URL=%CHROME_INFRA_URL%PortableGit-%GIT_VERSION%-bit.7z.exe
-set GIT_DOWNLOAD_PATH=%ZIP_DIR%\git.7z.exe
-set GIT_BIN_DIR=git-%GIT_VERSION%_bin
-set GIT_INST_DIR=%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%
-set GIT_EXE_PATH=%GIT_INST_DIR%\bin\git.exe
-
-:: Clean up any release which doesn't match the one we want.
-for /d %%i in ("%WIN_TOOLS_ROOT_DIR%\git-*_bin") do (
-  if not "%%i" == "%WIN_TOOLS_ROOT_DIR%\git-%GIT_VERSION%_bin" (
-    echo Cleaning old git installation %%i
-    rmdir /s /q "%%i" > NUL
-  )
-)
-
-if "%WIN_TOOLS_FORCE%" == "1" goto :GIT_INSTALL
-
-if not exist "%GIT_EXE_PATH%" goto :GIT_INSTALL
-
-call "%GIT_EXE_PATH%" --version 2>nul 1>nul
-if errorlevel 1 goto :GIT_INSTALL
-
-:: Several git versions can live side-by-side; check the top-level
-:: batch script to make sure it points to the desired version.
-for %%f in (git.bat gitk.bat ssh.bat ssh-keygen.bat git-bash) do (
-  %FIND_EXE% "%GIT_BIN_DIR%" "%WIN_TOOLS_ROOT_DIR%\%%f" 2>nul 1>nul
-  if errorlevel 1 goto :GIT_MAKE_BATCH_FILES
-)
-if not exist %GIT_INST_DIR%\etc\profile.d\python.sh goto :GIT_MAKE_BATCH_FILES
-goto :SYNC_GIT_HELP_FILES
-
-:GIT_INSTALL
-echo Installing git %GIT_VERSION% (avg 1-2 min download) ...
-
-if exist "%GIT_DOWNLOAD_PATH%" del "%GIT_DOWNLOAD_PATH%"
-echo Fetching from %GIT_FETCH_URL%
-cscript //nologo //e:jscript "%~dp0get_file.js" %GIT_FETCH_URL% "%GIT_DOWNLOAD_PATH%"
-if errorlevel 1 goto :GIT_FAIL
-:: Cleanup git directory if it already exists.
-if exist "%GIT_INST_DIR%\." rd /q /s "%GIT_INST_DIR%"
-
-:: run PortableGit self-extractor
-:: -y : Be Quiet ("yes")
-:: -sd1 : Self delete SFX archive
-:: -InstallPath : Where to put the files
-:: -Directory : Run the post-extract program with this current-working-directory
-::
-:: Path slashes must be escaped or the 7zip sfx treats e.g. path\to\dir as
-::   path[tab]o\dir.
-set GIT_INST_DIR_ESC=%GIT_INST_DIR:\=\\%
-call "%GIT_DOWNLOAD_PATH%" -y -sd1 -InstallPath="%GIT_INST_DIR_ESC%" -Directory="%GIT_INST_DIR_ESC%"
-if errorlevel 1 goto :GIT_FAIL
-
-del "%GIT_DOWNLOAD_PATH%"
-if not exist "%GIT_INST_DIR%\." goto :GIT_FAIL
-
-set DID_UPGRADE=1
-
-:GIT_MAKE_BATCH_FILES
-:: Create the batch files.
-set GIT_TEMPL=%~dp0git.template.bat
-set SED=%GIT_INST_DIR%\usr\bin\sed.exe
-call "%SED%" -e "s/GIT_BIN_DIR/%GIT_BIN_DIR%/g" -e "s/GIT_PROGRAM/cmd\\\\git.exe/g" < %GIT_TEMPL% > "%WIN_TOOLS_ROOT_DIR%\git.bat"
-call "%SED%" -e "s/GIT_BIN_DIR/%GIT_BIN_DIR%/g" -e "s/GIT_PROGRAM/cmd\\\\gitk.exe/g" < %GIT_TEMPL% > "%WIN_TOOLS_ROOT_DIR%\gitk.bat"
-call "%SED%" -e "s/GIT_BIN_DIR/%GIT_BIN_DIR%/g" -e "s/GIT_PROGRAM/usr\\\\bin\\\\ssh.exe/g" < %GIT_TEMPL% > "%WIN_TOOLS_ROOT_DIR%\ssh.bat"
-call "%SED%" -e "s/GIT_BIN_DIR/%GIT_BIN_DIR%/g" -e "s/GIT_PROGRAM/usr\\\\bin\\\\ssh-keygen.exe/g" < %GIT_TEMPL% > "%WIN_TOOLS_ROOT_DIR%\ssh-keygen.bat"
-call "%SED%" -e "s/GIT_BIN_DIR/%GIT_BIN_DIR%/g" -e "s/PYTHON_BIN_DIR/python276_bin/g" -e "s/SVN_BIN_DIR/svn_bin/g" < %~dp0git-bash.template.sh > "%WIN_TOOLS_ROOT_DIR%\git-bash"
-copy "%~dp0profile.d.python.sh" %GIT_INST_DIR%\etc\profile.d\python.sh > NUL
-
-:: Ensure various git configurations are set correctly at they system level.
-call "%WIN_TOOLS_ROOT_DIR%\git.bat" config --system core.autocrlf false
-call "%WIN_TOOLS_ROOT_DIR%\git.bat" config --system core.filemode false
-call "%WIN_TOOLS_ROOT_DIR%\git.bat" config --system core.preloadindex true
-call "%WIN_TOOLS_ROOT_DIR%\git.bat" config --system core.fscache true
-
-:SYNC_GIT_HELP_FILES
-:: Copy all the depot_tools docs into the mingw{bits} git docs root.
-:: /i : Make sure xcopy knows that the destination names a folder, not a file
-:: /q : Make xcopy quiet (though it still prints a `X File(s) copied` message
-::      which is why we have the > NUL)
-:: /d : Copy source files that are newer than the corresponding destination
-::      files only. This prevents excessive copying when none of the docs
-::      actually changed.
-:: /y : Don't prompt for overwrites (yes)
-xcopy /i /q /d /y "%WIN_TOOLS_ROOT_DIR%\man\html\*" "%GIT_INST_DIR%\mingw%OS_BITS%\share\doc\git-doc" > NUL
-
-:: MSYS users need to restart their shell.
-if defined MSYSTEM if defined DID_UPGRADE (
-  echo.
-  echo.
-  echo IMPORTANT:
-  echo depot_tools' git distribution has been updated while inside of a MinGW
-  echo shell. In order to complete the upgrade, please exit the shell and re-run
-  echo `git bash` from cmd.
-  exit 123
-)
-
-goto :SVN_CHECK
-
-:GIT_FAIL
-echo ... Failed to checkout git automatically.
-echo You should get the "prebaked" version used at %GIT_FETCH_URL%
-set ERRORLEVEL=1
+"%WIN_TOOLS_ROOT_DIR%\python.bat" "%~dp0git_bootstrap.py" --bits "%OS_BITS%"
 goto :END
 
-
-:SVN_CHECK
-:: If the batch file exists, skip the svn check.
-if exist "%WIN_TOOLS_ROOT_DIR%\svn.bat" goto :END
-if "%WIN_TOOLS_FORCE%" == "1" goto :SVN_INSTALL
-call svn --version 2>nul 1>nul
-if errorlevel 1 goto :SVN_INSTALL
-goto :END
-
-
-:SVN_INSTALL
-echo Installing subversion ...
-:: svn is not accessible; check it out and create 'proxy' files.
-set SVN_URL=%CHROME_INFRA_URL%svn_bin.zip
-if exist "%ZIP_DIR%\svn.zip" del "%ZIP_DIR%\svn.zip"
-echo Fetching from %SVN_URL%
-cscript //nologo //e:jscript "%~dp0get_file.js" %SVN_URL% "%ZIP_DIR%\svn.zip"
-if errorlevel 1 goto :SVN_FAIL
-:: Cleanup svn directory if it was existing.
-if exist "%WIN_TOOLS_ROOT_DIR%\svn\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\svn"
-if exist "%WIN_TOOLS_ROOT_DIR%\svn_bin\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\svn_bin"
-:: Will create svn_bin\...
-cscript //nologo //e:jscript "%~dp0unzip.js" "%ZIP_DIR%\svn.zip" "%WIN_TOOLS_ROOT_DIR%"
-if errorlevel 1 goto :SVN_FAIL
-if not exist "%WIN_TOOLS_ROOT_DIR%\svn_bin\." goto :SVN_FAIL
-del "%ZIP_DIR%\svn.zip"
-:: Create the batch file.
-call copy /y "%~dp0svn.new.bat" "%WIN_TOOLS_ROOT_DIR%\svn.bat" 1>nul
-call copy /y "%~dp0svnversion.new.bat" "%WIN_TOOLS_ROOT_DIR%\svnversion.bat" 1>nul
-goto :END
-
-
-:SVN_FAIL
-echo ... Failed to checkout svn automatically.
-echo You should get the "prebaked" version at %SVN_URL%
-set ERRORLEVEL=1
-goto :END
-
-
 :returncode
 set WIN_TOOLS_ROOT_DIR=
 exit /b %ERRORLEVEL%