Fix trailing whitespace in .cpp, .h, and .idl files

Source/core/loader/cache/CachedStyleSheetClient.h

Index: Source/core/loader/cache/CachedStyleSheetClient.h
diff --git a/Source/core/loader/cache/CachedStyleSheetClient.h b/Source/core/loader/cache/CachedStyleSheetClient.h
index b51b365d0ba56b01f28b752b48266df48f64ef33..cfc3123e670af18bdb5efe5c9838e31796429f16 100644
--- a/Source/core/loader/cache/CachedStyleSheetClient.h
+++ b/Source/core/loader/cache/CachedStyleSheetClient.h
@@ -3,22 +3,22 @@
  Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
  Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  Copyright (C) 2011 Google Inc. All rights reserved.
- 
+
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 of the License, or (at your option) any later version.
- 
+
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Library General Public License for more details.
- 
+
  You should have received a copy of the GNU Library General Public License
  along with this library; see the file COPYING.LIB.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  Boston, MA 02110-1301, USA.
- 
+
  This class provides all functionality needed for loading images, style sheets and html
  pages from the web. It has a memory cache for these objects.
  */