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

Tools/DumpRenderTree/TestNetscapePlugIn/Tests/NPDeallocateCalledBeforeNPShutdown.cpp

 /*
  * Copyright (C) 2011 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 20 matching lines @@
 
 class NPDeallocateCalledBeforeNPShutdown : public PluginTest {
 public:
     NPDeallocateCalledBeforeNPShutdown(NPP npp, const string& identifier)
         : PluginTest(npp, identifier)
     {
     }
 
 private:
     // This is the test object.
-    class TestObject : public Object<TestObject> { 
+    class TestObject : public Object<TestObject> {
     public:
-        ~TestObject() 
+        ~TestObject()
         {
             if (wasShutdownCalled)
                 indicateTestFailure();
         }
     };
 
     // This is the scriptable object. It has a single "testObject" property.
-    class ScriptableObject : public Object<ScriptableObject> { 
+    class ScriptableObject : public Object<ScriptableObject> {
     public:
         bool hasProperty(NPIdentifier propertyName)
         {
             return propertyName == pluginTest()->NPN_GetStringIdentifier("testObject");
         }
 
         bool getProperty(NPIdentifier propertyName, NPVariant* result)
         {
             if (propertyName != pluginTest()->NPN_GetStringIdentifier("testObject"))
                 return false;
 
             NPObject* testObject = TestObject::create(pluginTest());
             OBJECT_TO_NPVARIANT(testObject, *result);
             return true;
         }
     };
 
     virtual NPError NPP_New(NPMIMEType pluginType, uint16_t mode, int16_t argc, char *argn[], char *argv[], NPSavedData *saved)
     {
         registerNPShutdownFunction(shutdown);
 
         return NPERR_NO_ERROR;
     }
 
     virtual NPError NPP_GetValue(NPPVariable variable, void *value)
     {
         if (variable != NPPVpluginScriptableNPObject)
             return NPERR_GENERIC_ERROR;
-        
+
         *(NPObject**)value = ScriptableObject::create(this);
-        
+
         return NPERR_NO_ERROR;
     }
 
     static void shutdown()
     {
         wasShutdownCalled = true;
     }
 
 };
 
 static PluginTest::Register<NPDeallocateCalledBeforeNPShutdown> npRuntimeObjectFromDestroyedPlugin("np-deallocate-called-before-np-shutdown");