Refactoring: Simplify DocumentWriter by reorganizing its lifetime.

Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 986 matching lines @@
     Frame* sourceFrame = formState ? formState->sourceDocument()->frame() : m_frame;
     if (!sourceFrame)
         sourceFrame = m_frame;
     Frame* targetFrame = sourceFrame->loader()->findFrameForNavigation(request.frameName());
     if (targetFrame && targetFrame != sourceFrame) {
         if (Page* page = targetFrame->page())
             page->chrome().focus();
     }
 }
 
-void FrameLoader::loadURL(const ResourceRequest& request, const String& frameName, FrameLoadType newLoadType,
-    PassRefPtr<Event> event, PassRefPtr<FormState> formState)
+void FrameLoader::loadURL(const ResourceRequest& request, const String& frameName, FrameLoadType newLoadType, PassRefPtr<Event> event, PassRefPtr<FormState> formState)
 {
     if (m_inStopAllLoaders)
         return;
 
     bool isFormSubmission = formState;
 
     ASSERT(newLoadType != FrameLoadTypeSame);
 
     // The search for a target frame is done earlier in the case of form submission.
     Frame* targetFrame = isFormSubmission ? 0 : findFrameForNavigation(frameName);
@@ skipping 1508 matching lines @@
     FloatRect newWindowRect = DOMWindow::adjustWindowRect(page, windowRect);
 
     page->chrome().setWindowRect(newWindowRect);
     page->chrome().show();
 
     created = true;
     return frame;
 }
 
 } // namespace WebCore