Have Frame::loader() return a reference

Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 262 matching lines @@
 {
     m_openedByDOM = true;
 }
 
 void Page::goToItem(HistoryItem* item)
 {
     // stopAllLoaders may end up running onload handlers, which could cause further history traversals that may lead to the passed in HistoryItem
     // being deref()-ed. Make sure we can still use it with HistoryController::goToItem later.
     RefPtr<HistoryItem> protector(item);
 
-    if (m_mainFrame->loader()->history()->shouldStopLoadingForHistoryItem(item))
-        m_mainFrame->loader()->stopAllLoaders();
+    if (m_mainFrame->loader().history()->shouldStopLoadingForHistoryItem(item))
+        m_mainFrame->loader().stopAllLoaders();
 
-    m_mainFrame->loader()->history()->goToItem(item);
+    m_mainFrame->loader().history()->goToItem(item);
 }
 
 void Page::clearPageGroup()
 {
     if (!m_group)
         return;
     m_group->removePage(this);
     m_group = 0;
 }
 
@@ skipping 46 matching lines @@
         Page* page = *it;
 
         // Clear out the page's plug-in data.
         if (page->m_pluginData)
             page->m_pluginData = 0;
 
         if (!reload)
             continue;
 
         for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree().traverseNext()) {
-            if (frame->loader()->containsPlugins())
+            if (frame->loader().containsPlugins())
                 framesNeedingReload.append(frame);
         }
     }
 
     for (size_t i = 0; i < framesNeedingReload.size(); ++i)
-        framesNeedingReload[i]->loader()->reload();
+        framesNeedingReload[i]->loader().reload();
 }
 
 PluginData* Page::pluginData() const
 {
-    if (!mainFrame()->loader()->allowPlugins(NotAboutToInstantiatePlugin))
+    if (!mainFrame()->loader().allowPlugins(NotAboutToInstantiatePlugin))
         return 0;
     if (!m_pluginData)
         m_pluginData = PluginData::create(this);
     return m_pluginData.get();
 }
 
 static Frame* incrementFrame(Frame* curr, bool forward, bool wrapFlag)
 {
     return forward
         ? curr->tree().traverseNextWithWrap(wrapFlag)
@@ skipping 12 matching lines @@
     } while (frame);
 }
 
 void Page::setDefersLoading(bool defers)
 {
     if (defers == m_defersLoading)
         return;
 
     m_defersLoading = defers;
     for (Frame* frame = mainFrame(); frame; frame = frame->tree().traverseNext())
-        frame->loader()->setDefersLoading(defers);
+        frame->loader().setDefersLoading(defers);
 }
 
 void Page::setPageScaleFactor(float scale, const IntPoint& origin)
 {
     FrameView* view = mainFrame()->view();
 
     if (scale != m_pageScaleFactor) {
         m_pageScaleFactor = scale;
 
         if (view)
@@ skipping 204 matching lines @@
     , inspectorClient(0)
     , backForwardClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore