Update from https://crrev.com/306655

tools/git/move_source_file.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Moves C++ files to a new location, updating any include paths that point
 to them, and re-ordering headers as needed.  If multiple source files are
 specified, the destination must be a directory.  Updates include guards in
 moved header files.  Assumes Chromium coding style.
 
@@ skipping 15 matching lines @@
 
 import mffr
 
 if __name__ == '__main__':
   # Need to add the directory containing sort-headers.py to the Python
   # classpath.
   sys.path.append(os.path.abspath(os.path.join(sys.path[0], '..')))
 sort_headers = __import__('sort-headers')
 
 
-HANDLED_EXTENSIONS = ['.cc', '.mm', '.h', '.hh']
+HANDLED_EXTENSIONS = ['.cc', '.mm', '.h', '.hh', '.cpp']
 
 
 def IsHandledFile(path):
   return os.path.splitext(path)[1] in HANDLED_EXTENSIONS
 
 
 def MakeDestinationPath(from_path, to_path):
   """Given the from and to paths, return a correct destination path.
 
   The initial destination path may either a full path or a directory.
@@ skipping 30 matching lines @@
   from_path = from_path.replace('\\', '/')
   to_path = to_path.replace('\\', '/')
 
   if os.path.splitext(from_path)[1] in ['.h', '.hh']:
     UpdateIncludeGuard(from_path, to_path)
 
     # Update include/import references.
     files_with_changed_includes = mffr.MultiFileFindReplace(
         r'(#(include|import)\s*["<])%s([>"])' % re.escape(from_path),
         r'\1%s\3' % to_path,
-        ['*.cc', '*.h', '*.m', '*.mm'])
+        ['*.cc', '*.h', '*.m', '*.mm', '*.cpp'])
 
     # Reorder headers in files that changed.
     for changed_file in files_with_changed_includes:
       def AlwaysConfirm(a, b): return True
       sort_headers.FixFileWithConfirmFunction(changed_file, AlwaysConfirm, True)
 
   # Update comments; only supports // comments, which are primarily
   # used in our code.
   #
   # This work takes a bit of time. If this script starts feeling too
   # slow, one good way to speed it up is to make the comment handling
   # optional under a flag.
   mffr.MultiFileFindReplace(
       r'(//.*)%s' % re.escape(from_path),
       r'\1%s' % to_path,
-      ['*.cc', '*.h', '*.m', '*.mm'])
+      ['*.cc', '*.h', '*.m', '*.mm', '*.cpp'])
 
   # Update references in .gyp(i) files.
   def PathMinusFirstComponent(path):
     """foo/bar/baz -> bar/baz"""
     parts = re.split(r"[/\\]", path, 1)
     if len(parts) == 2:
       return parts[1]
     else:
       return parts[0]
   mffr.MultiFileFindReplace(
@@ skipping 71 matching lines @@
       continue
     to_path = MakeDestinationPath(from_path, orig_to_path)
     if not opts.already_moved:
       MoveFile(from_path, to_path)
     UpdatePostMove(from_path, to_path)
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())