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

Source/core/platform/chromium/ChromiumDataObject.cpp

Index: Source/core/platform/chromium/ChromiumDataObject.cpp
diff --git a/Source/core/platform/chromium/ChromiumDataObject.cpp b/Source/core/platform/chromium/ChromiumDataObject.cpp
index d29b06e314eeeba4a0433c9a2467b03f1f183086..3b32349d9f25a7f844c8b3034dda324440d07c64 100644
--- a/Source/core/platform/chromium/ChromiumDataObject.cpp
+++ b/Source/core/platform/chromium/ChromiumDataObject.cpp
@@ -1,10 +1,10 @@
 /*
  * Copyright (c) 2008, 2009, 2012 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
@@ -14,7 +14,7 @@
  *     * Neither the name of Google Inc. nor the names of its
  * contributors may be used to endorse or promote products derived from
  * this software without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR