Revert of Simplify the initialization of Git objects in Host.

third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/git.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/git.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/git.py b/third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/git.py
index 6933ca45dcd3ef65bc7c22201fba06b6f41a1a5a..442173fb86d31016846e588b3f92eaaf9ec7738b 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/git.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/common/checkout/scm/git.py
@@ -48,39 +48,11 @@
 
     executable_name = 'git'
 
-    def __init__(self, cwd=None, executive=None, filesystem=None):
+    def __init__(self, cwd, executive=None, filesystem=None):
+        self.cwd = cwd
         self._executive = executive or Executive()
         self._filesystem = filesystem or FileSystem()
-
-        self.cwd = cwd or self._filesystem.abspath(self._filesystem.getcwd())
-        if not Git.in_working_directory(self.cwd, executive=self._executive):
-            module_directory = self._filesystem.abspath(
-                self._filesystem.dirname(self._filesystem.path_to_module(self.__module__)))
-            _log.info('The current directory (%s) is not in a git repo, trying directory %s.',
-                      cwd, module_directory)
-            if Git.in_working_directory(module_directory, executive=self._executive):
-                self.cwd = module_directory
-            _log.error('Failed to find Git repo for %s or %s', cwd, module_directory)
-
-        self._init_executable_name()
         self.checkout_root = self.find_checkout_root(self.cwd)
-
-    def _init_executable_name(self):
-        # FIXME: This is a hack and should be removed.
-        try:
-            self._executive.run_command(['git', 'help'])
-        except OSError:
-            try:
-                self._executive.run_command(['git.bat', 'help'])
-                # The Win port uses the depot_tools package, which contains a number
-                # of development tools, including Python and git. Instead of using a
-                # real git executable, depot_tools indirects via a batch file, called
-                # "git.bat". This batch file allows depot_tools to auto-update the real
-                # git executable, which is contained in a subdirectory.
-                _log.debug('Engaging git.bat Windows hack.')
-                self.executable_name = 'git.bat'
-            except OSError:
-                _log.debug('Failed to engage git.bat Windows hack.')
 
     def _run_git(self,
                  command_args,