Fix trailing whitespace in .cpp, .h, and .idl files (ex. Source/core)

Source/bindings/v8/RetainedDOMInfo.cpp

Index: Source/bindings/v8/RetainedDOMInfo.cpp
diff --git a/Source/bindings/v8/RetainedDOMInfo.cpp b/Source/bindings/v8/RetainedDOMInfo.cpp
index 01b3448c5c518f56c3fe1a9af1024d58c604eefe..15a83f213cad8cf0e2e5451fadd3a8debbc73dea 100644
--- a/Source/bindings/v8/RetainedDOMInfo.cpp
+++ b/Source/bindings/v8/RetainedDOMInfo.cpp
@@ -1,10 +1,10 @@
 /*
  * 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
@@ -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
@@ -65,7 +65,7 @@ intptr_t RetainedDOMInfo::GetHash()
 {
     return PtrHash<void*>::hash(m_root);
 }
-    
+
 const char* RetainedDOMInfo::GetGroupLabel()
 {
     return m_root->inDocument() ? "(Document DOM trees)" : "(Detached DOM trees)";