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223 lines
7.2 KiB
C++
223 lines
7.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at:
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Code.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Chris Jones <jones.chris.g@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef mozilla_layout_RenderFrameParent_h
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#define mozilla_layout_RenderFrameParent_h
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#include "mozilla/layout/PRenderFrameParent.h"
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#include "mozilla/layers/ShadowLayersManager.h"
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#include <map>
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#include "nsDisplayList.h"
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#include "Layers.h"
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class nsContentView;
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class nsFrameLoader;
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class nsSubDocumentFrame;
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namespace mozilla {
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namespace layers {
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class ShadowLayersParent;
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}
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namespace layout {
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class RenderFrameParent : public PRenderFrameParent,
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public mozilla::layers::ShadowLayersManager
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{
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typedef mozilla::layers::FrameMetrics FrameMetrics;
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typedef mozilla::layers::ContainerLayer ContainerLayer;
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typedef mozilla::layers::Layer Layer;
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typedef mozilla::layers::LayerManager LayerManager;
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typedef mozilla::layers::ShadowLayersParent ShadowLayersParent;
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typedef FrameMetrics::ViewID ViewID;
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public:
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typedef std::map<ViewID, nsRefPtr<nsContentView> > ViewMap;
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RenderFrameParent(nsFrameLoader* aFrameLoader);
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virtual ~RenderFrameParent();
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void Destroy();
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/**
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* Helper function for getting a non-owning reference to a scrollable.
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* @param aId The ID of the frame.
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*/
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nsContentView* GetContentView(ViewID aId = FrameMetrics::ROOT_SCROLL_ID);
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void ContentViewScaleChanged(nsContentView* aView);
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virtual void ShadowLayersUpdated() MOZ_OVERRIDE;
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NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
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nsSubDocumentFrame* aFrame,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists);
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already_AddRefed<Layer> BuildLayer(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame,
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LayerManager* aManager,
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const nsIntRect& aVisibleRect);
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void OwnerContentChanged(nsIContent* aContent);
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void SetBackgroundColor(nscolor aColor) { mBackgroundColor = gfxRGBA(aColor); };
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protected:
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NS_OVERRIDE void ActorDestroy(ActorDestroyReason why);
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NS_OVERRIDE virtual PLayersParent* AllocPLayers(LayerManager::LayersBackend* aBackendType);
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NS_OVERRIDE virtual bool DeallocPLayers(PLayersParent* aLayers);
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private:
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void BuildViewMap();
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LayerManager* GetLayerManager() const;
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ShadowLayersParent* GetShadowLayers() const;
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ContainerLayer* GetRootLayer() const;
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nsRefPtr<nsFrameLoader> mFrameLoader;
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nsRefPtr<ContainerLayer> mContainer;
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// This contains the views for all the scrollable frames currently in the
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// painted region of our remote content.
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ViewMap mContentViews;
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// True after Destroy() has been called, which is triggered
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// originally by nsFrameLoader::Destroy(). After this point, we can
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// no longer safely ask the frame loader to find its nearest layer
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// manager, because it may have been disconnected from the DOM.
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// It's still OK to *tell* the frame loader that we've painted after
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// it's destroyed; it'll just ignore us, and we won't be able to
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// find an nsIFrame to invalidate. See ShadowLayersUpdated().
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//
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// Prefer the extra bit of state to null'ing out mFrameLoader in
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// Destroy() so that less code needs to be special-cased for after
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// Destroy().
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//
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// It's possible for mFrameLoader==null and
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// mFrameLoaderDestroyed==false.
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bool mFrameLoaderDestroyed;
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// this is gfxRGBA because that's what ColorLayer wants.
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gfxRGBA mBackgroundColor;
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};
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} // namespace layout
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} // namespace mozilla
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/**
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* A DisplayRemote exists solely to graft a child process's shadow
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* layer tree (for a given RenderFrameParent) into its parent
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* process's layer tree.
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*/
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class nsDisplayRemote : public nsDisplayItem
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{
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typedef mozilla::layout::RenderFrameParent RenderFrameParent;
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public:
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nsDisplayRemote(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
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RenderFrameParent* aRemoteFrame)
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: nsDisplayItem(aBuilder, aFrame)
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, mRemoteFrame(aRemoteFrame)
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{}
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NS_OVERRIDE
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virtual LayerState GetLayerState(nsDisplayListBuilder* aBuilder,
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LayerManager* aManager)
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{ return mozilla::LAYER_ACTIVE; }
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NS_OVERRIDE
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virtual already_AddRefed<Layer>
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BuildLayer(nsDisplayListBuilder* aBuilder, LayerManager* aManager,
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const ContainerParameters& aContainerParameters);
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NS_DISPLAY_DECL_NAME("Remote", TYPE_REMOTE)
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private:
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RenderFrameParent* mRemoteFrame;
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};
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/**
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* nsDisplayRemoteShadow is a way of adding display items for frames in a
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* separate process, for hit testing only. After being processed, the hit
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* test state will contain IDs for any remote frames that were hit.
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*
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* The frame should be its respective render frame parent.
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*/
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class nsDisplayRemoteShadow : public nsDisplayItem
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{
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typedef mozilla::layout::RenderFrameParent RenderFrameParent;
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typedef mozilla::layers::FrameMetrics::ViewID ViewID;
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public:
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nsDisplayRemoteShadow(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame,
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nsRect aRect,
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ViewID aId)
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: nsDisplayItem(aBuilder, aFrame)
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, mRect(aRect)
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, mId(aId)
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{}
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NS_OVERRIDE nsRect GetBounds(nsDisplayListBuilder* aBuilder)
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{
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return mRect;
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}
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virtual PRUint32 GetPerFrameKey()
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{
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NS_ABORT();
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return 0;
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}
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NS_OVERRIDE void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
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HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames);
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NS_DISPLAY_DECL_NAME("Remote-Shadow", TYPE_REMOTE_SHADOW)
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private:
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nsRect mRect;
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ViewID mId;
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};
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#endif // mozilla_layout_RenderFrameParent_h
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