Merge 138991

Source/WebCore/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "Page.h"
 
 #include "AlternativeTextClient.h"
 #include "BackForwardController.h"
 #include "BackForwardList.h"
 #include "Chrome.h"
 #include "ChromeClient.h"
+#include "ClientRectList.h"
 #include "ContextMenuClient.h"
 #include "ContextMenuController.h"
 #include "DOMWindow.h"
 #include "DocumentMarkerController.h"
 #include "DocumentStyleSheetCollection.h"
 #include "DragController.h"
 #include "EditorClient.h"
 #include "Event.h"
 #include "EventNames.h"
 #include "ExceptionCode.h"
@@ skipping 224 matching lines @@
 {
     if (Document* document = m_mainFrame->document())
         document->updateLayout();
 
     if (ScrollingCoordinator* scrollingCoordinator = this->scrollingCoordinator())
         return scrollingCoordinator->mainThreadScrollingReasonsAsText();
 
     return String();
 }
 
+PassRefPtr<ClientRectList> Page::nonFastScrollableRects(const Frame* frame)
+{
+    if (Document* document = m_mainFrame->document())
+        document->updateLayout();
+
+    Vector<IntRect> rects;
+    if (ScrollingCoordinator* scrollingCoordinator = this->scrollingCoordinator())
+        rects = scrollingCoordinator->computeNonFastScrollableRegion(frame, IntPoint()).rects();
+
+    Vector<FloatQuad> quads(rects.size());
+    for (size_t i = 0; i < rects.size(); ++i)
+        quads[i] = FloatRect(rects[i]);
+    return ClientRectList::create(quads);
+}
+
 struct ViewModeInfo {
     const char* name;
     Page::ViewMode type;
 };
 static const int viewModeMapSize = 5;
 static ViewModeInfo viewModeMap[viewModeMapSize] = {
     {"windowed", Page::ViewModeWindowed},
     {"floating", Page::ViewModeFloating},
     {"fullscreen", Page::ViewModeFullscreen},
     {"maximized", Page::ViewModeMaximized},
@@ skipping 1072 matching lines @@
     , plugInClient(0)
     , validationMessageClient(0)
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 } // namespace WebCore