Remove codes related deleting Blink or WebKit repository while processing revisions.

tools/bisect-perf-regression.py

 #!/usr/bin/env python
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Performance Test Bisect Tool
 
 This script bisects a series of changelists using binary search. It starts at
 a bad revision where a performance metric has regressed, and asks for a last
 known-good revision. It will then binary search across this revision range by
@@ skipping 903 matching lines @@
 
     self.opts = opts
     self.source_control = source_control
     self.src_cwd = os.getcwd()
     self.cros_cwd = os.path.join(os.getcwd(), '..', 'cros')
     self.depot_cwd = {}
     self.cleanup_commands = []
     self.warnings = []
     self.builder = builder.Builder.FromOpts(opts)
 
-    # This always starts true since the script grabs latest first.
-    self.was_blink = True
-
     for d in DEPOT_NAMES:
       # The working directory of each depot is just the path to the depot, but
       # since we're already in 'src', we can skip that part.
 
       self.depot_cwd[d] = os.path.join(
           self.src_cwd, DEPOT_DEPS_NAME[d]['src'][4:])
 
   def PerformCleanup(self):
     """Performs cleanup when script is finished."""
     os.chdir(self.src_cwd)
@@ skipping 832 matching lines @@
     print 'Cleaning up between runs.'
     print
 
     # Leaving these .pyc files around between runs may disrupt some perf tests.
     for (path, _, files) in os.walk(self.src_cwd):
       for cur_file in files:
         if cur_file.endswith('.pyc'):
           path_to_file = os.path.join(path, cur_file)
           os.remove(path_to_file)
 
-  def PerformWebkitDirectoryCleanup(self, revision):
-    """Cleans up the Webkit directory before syncing another revision.
-
-    If the script is switching between Blink and WebKit during bisect,
-    its faster to just delete the directory rather than leave it up to git
-    to sync.
-
-    Returns:
-      True if successful.
-    """
-    cwd = os.getcwd()
-    os.chdir(self.src_cwd)
-
-    is_blink = bisect_utils.IsDepsFileBlink(revision)
-
-    os.chdir(cwd)
-
-    if self.was_blink != is_blink:
-      self.was_blink = is_blink
-      # Removes third_party/Webkit directory.
-      return bisect_utils.RemoveThirdPartyDirectory('Webkit')
-    return True
-
   def PerformCrosChrootCleanup(self):
     """Deletes the chroot.
 
     Returns:
       True if successful.
     """
     cwd = os.getcwd()
     self.ChangeToDepotWorkingDirectory('cros')
     cmd = [bisect_utils.CROS_SDK_PATH, '--delete']
     return_code = bisect_utils.RunProcess(cmd)
@@ skipping 22 matching lines @@
     if depot == 'chromium' or depot == 'android-chrome':
       # Removes third_party/libjingle. At some point, libjingle was causing
       # issues syncing when using the git workflow (crbug.com/266324).
       os.chdir(self.src_cwd)
       if not bisect_utils.RemoveThirdPartyDirectory('libjingle'):
         return False
       # Removes third_party/skia. At some point, skia was causing
       # issues syncing when using the git workflow (crbug.com/377951).
       if not bisect_utils.RemoveThirdPartyDirectory('skia'):
         return False
-      if depot == 'chromium':
-        # The fast webkit cleanup doesn't work for android_chrome
-        # The switch from Webkit to Blink that this deals with now happened
-        # quite a long time ago so this is unlikely to be a problem.
-        return self.PerformWebkitDirectoryCleanup(revision)
     elif depot == 'cros':
       return self.PerformCrosChrootCleanup()
     return True
 
   def RunPostSync(self, depot):
     """Performs any work after syncing.
 
     Returns:
       True if successful.
     """
@@ skipping 1514 matching lines @@
       # bugs. If you change this, please update the perf dashboard as well.
       bisect_utils.OutputAnnotationStepStart('Results')
     print 'Error: %s' % e.message
     if opts.output_buildbot_annotations:
       bisect_utils.OutputAnnotationStepClosed()
   return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())