Add linux3 build support to chromium (base repository)

tools/code_coverage/coverage_posix.py

 #!/usr/bin/env python
 # Copyright (c) 2010 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.
 
 """Generate and process code coverage.
 
 TODO(jrg): rename this from coverage_posix.py to coverage_all.py!
 
 Written for and tested on Mac, Linux, and Windows.  To use this script
@@ skipping 529 matching lines @@
     return retcode
 
   def IsPosix(self):
     """Return True if we are POSIX."""
     return self.IsMac() or self.IsLinux()
 
   def IsMac(self):
     return sys.platform == 'darwin'
 
   def IsLinux(self):
-    return sys.platform == 'linux2'
+    return sys.platform.startswith('linux')
 
   def IsWindows(self):
     """Return True if we are Windows."""
     return sys.platform in ('win32', 'cygwin')
 
   def ClearData(self):
     """Clear old gcda files and old coverage info files."""
     if self.options.dont_clear_coverage_data:
       print 'Clearing of coverage data NOT performed.'
       return
@@ skipping 346 matching lines @@
   if options.trim:
     coverage.TrimTests()
   coverage.RunTests()
   if options.genhtml:
     coverage.GenerateHtml()
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())