old_contents: #!/usr/bin/env python
  # Copyright (c) 2014 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.
  
  """Run the Skia DM executable. """
  
  from build_step import BuildStep
  import sys
  
  class RunDM(BuildStep):
    def _AnyMatch(self, *args):
      return any(arg in self._builder_name for arg in args)
  
    def _AllMatch(self, *args):
      return all(arg in self._builder_name for arg in args)
  
    def _Run(self):
      args = [
        '--verbose',
        '--resourcePath', self._device_dirs.ResourceDir(),
      ]
  
      run_dm = True
      match  = []
  
      # Disable failing tests.
      if self._AnyMatch('ChromeOS', 'DirectWrite'):
        match.append('~bitmapscroll')
  
      if self._AnyMatch('Win7', 'Android'):
        match.append('~blurroundrect')
  
      if self._AnyMatch('Android'):
        match.append('~giantbitmap')
  
      if self._AnyMatch('Tegra'):
        match.append('~downsamplebitmap_text')
  
      # Disable crashing tests.
      if self._AllMatch('10.6', 'Debug'):
        # Not sure what's failing exactly, so disable DM entirely.
        run_dm = False
  
      if match:
        args.append('--match')
        args.extend(match)
  
      if run_dm:
        self._flavor_utils.RunFlavoredCmd('dm', args)
  
  if '__main__' == __name__:
    sys.exit(BuildStep.RunBuildStep(RunDM))
  
new_contents: #!/usr/bin/env python
  # Copyright (c) 2014 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.
  
  """Run the Skia DM executable. """
  
  from build_step import BuildStep
  import sys
  
  class RunDM(BuildStep):
    def _AnyMatch(self, *args):
      return any(arg in self._builder_name for arg in args)
  
    def _AllMatch(self, *args):
      return all(arg in self._builder_name for arg in args)
  
    def _Run(self):
      args = [
        '--verbose',
        '--resourcePath', self._device_dirs.ResourceDir(),
      ]
  
      run_dm = True
      match  = []
  
      # Disable failing tests.
      if self._AnyMatch('ChromeOS', 'DirectWrite'):
        match.append('~bitmapscroll')
  
      if self._AnyMatch('Win7', 'Android'):
        match.append('~blurroundrect')
  
      if self._AnyMatch('Android'):
        match.append('~giantbitmap')
  
      if self._AnyMatch('Tegra'):
        match.append('~downsamplebitmap_text')
  
      # No idea why this test has started failing.
      # Not obviously correlated with any code change.
      match.append('~PremulAlphaRoundTrip')
  
      # Disable crashing tests.
      if self._AllMatch('10.6', 'Debug'):
        # Not sure what's failing exactly, so disable DM entirely.
        run_dm = False
  
      if match:
        args.append('--match')
        args.extend(match)
  
      if run_dm:
        self._flavor_utils.RunFlavoredCmd('dm', args)
  
  if '__main__' == __name__:
    sys.exit(BuildStep.RunBuildStep(RunDM))
  
subject: Disable PremulAlpha test in DM.