Revert of Remove unused imports in webkitpy.

third_party/WebKit/Tools/Scripts/webkitpy/bindings/main.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/bindings/main.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/bindings/main.py b/third_party/WebKit/Tools/Scripts/webkitpy/bindings/main.py
index 05af53b97e32cdf4032c6b975487bb0e76b04cda..e61cb27eccc5b9b1e44c69c7626793acaf5c31de 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/bindings/main.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/bindings/main.py
@@ -26,6 +26,7 @@
 import filecmp
 import fnmatch
 import os
+import re
 import shutil
 import sys
 import tempfile
@@ -40,12 +41,13 @@
 sys.path.append(source_path)  # for Source/bindings imports
 
 from bindings.scripts.code_generator_v8 import CodeGeneratorUnionType
+import bindings.scripts.compute_interfaces_info_individual
 from bindings.scripts.compute_interfaces_info_individual import InterfaceInfoCollector
+import bindings.scripts.compute_interfaces_info_overall
 from bindings.scripts.compute_interfaces_info_overall import compute_interfaces_info_overall, interfaces_info
 from bindings.scripts.idl_compiler import IdlCompilerDictionaryImpl, IdlCompilerV8
-from bindings.scripts.utilities import ComponentInfoProviderCore
-from bindings.scripts.utilities import ComponentInfoProviderModules
-from bindings.scripts.utilities import write_file
+from bindings.scripts.idl_reader import IdlReader
+from bindings.scripts.utilities import ComponentInfoProviderCore, ComponentInfoProviderModules, idl_filename_to_component, write_file
 
 
 PASS_MESSAGE = 'All tests PASS!'