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

Source/core/loader/FormState.h

Index: Source/core/loader/FormState.h
diff --git a/Source/core/loader/FormState.h b/Source/core/loader/FormState.h
index a4d98a739c15b94c352d95ca87cd9c1e193c0fe8..058db51e6c44203ac699cfe8cea910093e7d6942 100644
--- a/Source/core/loader/FormState.h
+++ b/Source/core/loader/FormState.h
@@ -6,13 +6,13 @@
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer. 
+ *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution. 
+ *     documentation and/or other materials provided with the distribution.
  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission. 
+ *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
@@ -41,7 +41,7 @@ namespace WebCore {
         SubmittedByJavaScript,
         NotSubmittedByJavaScript
     };
-    
+
     typedef Vector<std::pair<String, String> > StringPairVector;
 
     class FormState : public RefCounted<FormState> {