Fix trailing whitespace in scripts and misc. files

Source/WebKit/chromium/WebKitUnitTests.gyp

 #
 # Copyright (C) 2011 Google Inc. All rights reserved.
 #
 # 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 107 matching lines @@
                     'include_dirs': [
                         '../../../public/web/mac',
                     ],
                 }],
                 [ 'os_posix==1 and OS!="mac" and OS!="android" and OS!="ios" and linux_use_tcmalloc==1', {
                     'dependencies': [
                         '<(DEPTH)/base/allocator/allocator.gyp:allocator',
                     ],
                 }],
             ],
-        }                
+        }
     ], # targets
     'conditions': [
         ['gcc_version>=46', {
             'target_defaults': {
                 # Disable warnings about c++0x compatibility, as some names (such
                 # as nullptr) conflict with upcoming c++0x types.
                 'cflags_cc': ['-Wno-c++0x-compat'],
             },
         }],
         ['OS=="android" and android_webview_build==0 and gtest_target_type == "shared_library"', {
@@ skipping 16 matching lines @@
         ['clang==1', {
             'target_defaults': {
                 'cflags': ['-Wunused-parameter'],
                 'xcode_settings': {
                     'WARNING_CFLAGS': ['-Wunused-parameter'],
                 },
             },
         }],
     ],
 }