Change all relative imports in webkitpy to absolute imports.

third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/text.py

 # Copyright (C) 2009 Google Inc. All rights reserved.
 # Copyright (C) 2010 Chris Jerdonek (cjerdonek@webkit.org)
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 11 matching lines @@
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 """Checks WebKit style for text files."""
 
-from common import TabChecker
+from webkitpy.style.checkers.common import TabChecker
 
 
 class TextChecker(object):
-
     """Processes text lines for checking style."""
 
     def __init__(self, file_path, handle_style_error):
         self.file_path = file_path
         self.handle_style_error = handle_style_error
         self._tab_checker = TabChecker(file_path, handle_style_error)
 
     def check(self, lines):
         self._tab_checker.check(lines)
 
 
 # FIXME: Remove this function (requires refactoring unit tests).
 def process_file_data(filename, lines, error):
     checker = TextChecker(filename, error)
     checker.check(lines)