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

Source/modules/webdatabase/SQLStatementBackend.cpp

 /*
  * Copyright (C) 2007, 2013 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 20 matching lines @@
 #include "core/platform/Logging.h"
 #include "core/platform/sql/SQLValue.h"
 #include "core/platform/sql/SQLiteDatabase.h"
 #include "core/platform/sql/SQLiteStatement.h"
 #include "modules/webdatabase/AbstractSQLStatement.h"
 #include "modules/webdatabase/DatabaseBackend.h"
 #include "modules/webdatabase/SQLError.h"
 #include "wtf/text/CString.h"
 
 
-// The Life-Cycle of a SQLStatement i.e. Who's keeping the SQLStatement alive? 
+// The Life-Cycle of a SQLStatement i.e. Who's keeping the SQLStatement alive?
 // ==========================================================================
 // The RefPtr chain goes something like this:
 //
 //     At birth (in SQLTransactionBackend::executeSQL()):
 //     =================================================
 //     SQLTransactionBackend           // Deque<RefPtr<SQLStatementBackend> > m_statementQueue points to ...
 //     --> SQLStatementBackend         // OwnPtr<SQLStatement> m_frontend points to ...
 //         --> SQLStatement
 //
 //     After grabbing the statement for execution (in SQLTransactionBackend::getNextStatement()):
@@ skipping 183 matching lines @@
     if (lastExecutionFailedDueToQuota())
         m_error = 0;
 }
 
 bool SQLStatementBackend::lastExecutionFailedDueToQuota() const
 {
     return m_error && m_error->code() == SQLError::QUOTA_ERR;
 }
 
 } // namespace WebCore