Add Frame and RemoteFrame classes.

Creates RemoteFrame, which will represent in WebCore frames
that are rendered outside of Blink, and Frame, a base class
for both LocalFrame and RemoteFrame. The current division of
members and methods between Frame and LocalFrame is not
final, but provides a starting point for us to start
converting LocalFrame to Frame in some parts of Blink.

BUG=346764
R=eseidel@chromium.org

Review URL: https://codereview.chromium.org/183713002

git-svn-id: svn://svn.chromium.org/blink/trunk@168501 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/core.gypi

@@ -1062,6 +1062,8 @@
             'frame/DeprecatedScheduleStyleRecalcDuringCompositingUpdate.h',
             'frame/DeprecatedScheduleStyleRecalcDuringLayout.cpp',
             'frame/DeprecatedScheduleStyleRecalcDuringLayout.h',
+            'frame/Frame.cpp',
+            'frame/Frame.h',
             'frame/FrameDestructionObserver.cpp',
             'frame/FrameDestructionObserver.h',
             'frame/FrameHost.cpp',
@@ -1082,6 +1084,8 @@
             'frame/NavigatorID.h',
             'frame/NavigatorOnLine.h',
             'frame/PageConsole.cpp',
+            'frame/RemoteFrame.cpp',
+            'frame/RemoteFrame.h',
             'frame/Screen.cpp',
             'frame/Screen.h',
             'frame/Settings.cpp',

third_party/WebKit/Source/core/frame/Frame.cpp

+/*
+ * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
+ *                     1999 Lars Knoll <knoll@kde.org>
+ *                     1999 Antti Koivisto <koivisto@kde.org>
+ *                     2000 Simon Hausmann <hausmann@kde.org>
+ *                     2000 Stefan Schimanski <1Stein@gmx.de>
+ *                     2001 George Staikos <staikos@kde.org>
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
+ * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
+ * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
+ * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ * Copyright (C) 2008 Google Inc.
+ *
+ * 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 "core/frame/Frame.h"
+
+#include "core/dom/DocumentType.h"
+#include "core/events/Event.h"
+#include "core/frame/DOMWindow.h"
+#include "core/frame/FrameDestructionObserver.h"
+#include "core/frame/FrameHost.h"
+#include "core/frame/Settings.h"
+#include "core/html/HTMLFrameElementBase.h"
+#include "core/inspector/InspectorInstrumentation.h"
+#include "core/loader/EmptyClients.h"
+#include "core/loader/FrameLoaderClient.h"
+#include "core/page/Chrome.h"
+#include "core/page/ChromeClient.h"
+#include "core/page/EventHandler.h"
+#include "core/page/FocusController.h"
+#include "core/page/Page.h"
+#include "core/rendering/RenderView.h"
+#include "public/platform/WebLayer.h"
+#include "wtf/PassOwnPtr.h"
+#include "wtf/RefCountedLeakCounter.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+namespace {
+
+int64_t generateFrameID()
+{
+    // Initialize to the current time to reduce the likelihood of generating
+    // identifiers that overlap with those from past/future browser sessions.
+    static int64_t next = static_cast<int64_t>(currentTime() * 1000000.0);
+    return ++next;
+}
+
+} // namespace
+
+DEFINE_DEBUG_ONLY_GLOBAL(WTF::RefCountedLeakCounter, frameCounter, ("Frame"));
+
+Frame::Frame(PassRefPtr<FrameInit> frameInit)
+    : m_frameInit(frameInit)
+    , m_host(m_frameInit->frameHost())
+    , m_frameID(generateFrameID())
+    , m_remotePlatformLayer(0)
+{
+    ASSERT(page());
+
+#ifndef NDEBUG
+    frameCounter.increment();
+#endif
+}
+
+Frame::~Frame()
+{
+    setDOMWindow(nullptr);
+
+    // FIXME: We should not be doing all this work inside the destructor
+
+#ifndef NDEBUG
+    frameCounter.decrement();
+#endif
+
+    HashSet<FrameDestructionObserver*>::iterator stop = m_destructionObservers.end();
+    for (HashSet<FrameDestructionObserver*>::iterator it = m_destructionObservers.begin(); it != stop; ++it)
+        (*it)->frameDestroyed();
+}
+
+void Frame::addDestructionObserver(FrameDestructionObserver* observer)
+{
+    m_destructionObservers.add(observer);
+}
+
+void Frame::removeDestructionObserver(FrameDestructionObserver* observer)
+{
+    m_destructionObservers.remove(observer);
+}
+
+FrameHost* Frame::host() const
+{
+    return m_host;
+}
+
+Page* Frame::page() const
+{
+    if (m_host)
+        return &m_host->page();
+    return 0;
+}
+
+Settings* Frame::settings() const
+{
+    if (m_host)
+        return &m_host->settings();
+    return 0;
+}
+
+void Frame::setDOMWindow(PassRefPtr<DOMWindow> domWindow)
+{
+    if (m_domWindow)
+        m_domWindow->reset();
+    m_domWindow = domWindow;
+}
+
+static ChromeClient& emptyChromeClient()
+{
+    DEFINE_STATIC_LOCAL(EmptyChromeClient, client, ());
+    return client;
+}
+
+ChromeClient& Frame::chromeClient() const
+{
+    if (Page* page = this->page())
+        return page->chrome().client();
+    return emptyChromeClient();
+}
+
+Document* Frame::document() const
+{
+    return m_domWindow ? m_domWindow->document() : 0;
+}
+
+RenderView* Frame::contentRenderer() const
+{
+    return document() ? document()->renderView() : 0;
+}
+
+void Frame::willDetachFrameHost()
+{
+    HashSet<FrameDestructionObserver*>::iterator stop = m_destructionObservers.end();
+    for (HashSet<FrameDestructionObserver*>::iterator it = m_destructionObservers.begin(); it != stop; ++it)
+        (*it)->willDetachFrameHost();
+
+    // FIXME: Page should take care of updating focus/scrolling instead of Frame.
+    // FIXME: It's unclear as to why this is called more than once, but it is,
+    // so page() could be null.
+    if (page() && page()->focusController().focusedFrame() == this)
+        page()->focusController().setFocusedFrame(nullptr);
+}
+
+void Frame::detachFromFrameHost()
+{
+    m_host = 0;
+}
+
+bool Frame::isMainFrame() const
+{
+    Page* page = this->page();
+    return page && this == page->mainFrame();
+}
+
+} // namespace WebCore

third_party/WebKit/Source/core/frame/Frame.h

+/*
+ * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
+ *                     1999-2001 Lars Knoll <knoll@kde.org>
+ *                     1999-2001 Antti Koivisto <koivisto@kde.org>
+ *                     2000-2001 Simon Hausmann <hausmann@kde.org>
+ *                     2000-2001 Dirk Mueller <mueller@kde.org>
+ *                     2000 Stefan Schimanski <1Stein@gmx.de>
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
+ * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
+ *
+ * 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.
+ */
+
+#ifndef Frame_h
+#define Frame_h
+
+#include "wtf/Forward.h"
+#include "wtf/HashSet.h"
+#include "wtf/RefCounted.h"
+
+namespace blink {
+class WebLayer;
+}
+
+namespace WebCore {
+
+class Document;
+class DOMWindow;
+class ChromeClient;
+class FrameDestructionObserver;
+class FrameHost;
+class FrameLoaderClient;
+class HTMLFrameOwnerElement;
+class Page;
+class RenderView;
+class Settings;
+
+class FrameInit : public RefCounted<FrameInit> {
+public:
+    // For creating a dummy Frame
+    static PassRefPtr<FrameInit> create(FrameHost* host, FrameLoaderClient* client)
+    {
+        return adoptRef(new FrameInit(host, client));
+    }
+
+    void setFrameHost(FrameHost* host) { m_frameHost = host; }
+    FrameHost* frameHost() const { return m_frameHost; }
+
+    void setFrameLoaderClient(FrameLoaderClient* client) { m_client = client; }
+    FrameLoaderClient* frameLoaderClient() const { return m_client; }
+
+    void setOwnerElement(HTMLFrameOwnerElement* ownerElement) { m_ownerElement = ownerElement; }
+    HTMLFrameOwnerElement* ownerElement() const { return m_ownerElement; }
+
+protected:
+    FrameInit(FrameHost* host = 0, FrameLoaderClient* client = 0)
+        : m_client(client)
+        , m_frameHost(host)
+        , m_ownerElement(0)
+    {
+    }
+
+private:
+    FrameLoaderClient* m_client;
+    FrameHost* m_frameHost;
+    HTMLFrameOwnerElement* m_ownerElement;
+};
+
+class Frame : public RefCounted<Frame> {
+public:
+    virtual bool isLocalFrame() const { return false; }
+    virtual bool isRemoteFrame() const { return false; }
+
+    virtual ~Frame();
+
+    void addDestructionObserver(FrameDestructionObserver*);
+    void removeDestructionObserver(FrameDestructionObserver*);
+
+    virtual void willDetachFrameHost();
+    virtual void detachFromFrameHost();
+
+    // NOTE: Page is moving out of Blink up into the browser process as
+    // part of the site-isolation (out of process iframes) work.
+    // FrameHost should be used instead where possible.
+    Page* page() const;
+    FrameHost* host() const; // Null when the frame is detached.
+
+    bool isMainFrame() const;
+
+    // FIXME: DOMWindow and Document should both be moved to LocalFrame
+    // after RemoteFrame is complete enough to exist without them.
+    virtual void setDOMWindow(PassRefPtr<DOMWindow>);
+    DOMWindow* domWindow() const;
+    Document* document() const;
+
+    ChromeClient& chromeClient() const;
+
+    RenderView* contentRenderer() const; // Root of the render tree for the document contained in this frame.
+
+    int64_t frameID() const { return m_frameID; }
+
+    // FIXME: These should move to RemoteFrame when that is instantiated.
+    void setRemotePlatformLayer(blink::WebLayer* remotePlatformLayer) { m_remotePlatformLayer = remotePlatformLayer; }
+    blink::WebLayer* remotePlatformLayer() const { return m_remotePlatformLayer; }
+
+    Settings* settings() const; // can be null
+
+protected:
+    Frame(PassRefPtr<FrameInit>);
+
+    RefPtr<FrameInit> m_frameInit;
+    FrameHost* m_host;
+
+    RefPtr<DOMWindow> m_domWindow;
+
+private:
+
+    HashSet<FrameDestructionObserver*> m_destructionObservers;
+
+    // Temporary hack for history.
+    int64_t m_frameID;
+
+    blink::WebLayer* m_remotePlatformLayer;
+};
+
+inline DOMWindow* Frame::domWindow() const
+{
+    return m_domWindow.get();
+}
+} // namespace WebCore
+
+#endif // Frame_h

third_party/WebKit/Source/core/frame/LocalFrame.cpp

@@ -43,19 +43,15 @@
 #include "core/events/Event.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/frame/DOMWindow.h"
-#include "core/frame/FrameDestructionObserver.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLFrameElementBase.h"
 #include "core/inspector/InspectorInstrumentation.h"
-#include "core/loader/EmptyClients.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/page/Chrome.h"
-#include "core/page/ChromeClient.h"
 #include "core/page/EventHandler.h"
 #include "core/page/FocusController.h"
-#include "core/page/Page.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/rendering/HitTestResult.h"
 #include "core/rendering/RenderLayer.h"
@@ -66,9 +62,7 @@
 #include "platform/DragImage.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/ImageBuffer.h"
-#include "public/platform/WebLayer.h"
 #include "wtf/PassOwnPtr.h"
-#include "wtf/RefCountedLeakCounter.h"
 #include "wtf/StdLibExtras.h"
 
 using namespace std;
@@ -77,20 +71,6 @@ namespace WebCore {
 
 using namespace HTMLNames;
 
-namespace {
-
-int64_t generateFrameID()
-{
-    // Initialize to the current time to reduce the likelihood of generating
-    // identifiers that overlap with those from past/future browser sessions.
-    static int64_t next = static_cast<int64_t>(currentTime() * 1000000.0);
-    return ++next;
-}
-
-} // namespace
-
-DEFINE_DEBUG_ONLY_GLOBAL(WTF::RefCountedLeakCounter, frameCounter, ("LocalFrame"));
-
 static inline float parentPageZoomFactor(LocalFrame* frame)
 {
     LocalFrame* parent = frame->tree().parent();
@@ -108,10 +88,9 @@ static inline float parentTextZoomFactor(LocalFrame* frame)
 }
 
 inline LocalFrame::LocalFrame(PassRefPtr<FrameInit> frameInit)
-    : m_frameID(generateFrameID())
-    , m_host(frameInit->frameHost())
+    : Frame(frameInit)
     , m_treeNode(this)
-    , m_loader(this, frameInit->frameLoaderClient())
+    , m_loader(this, m_frameInit->frameLoaderClient())
     , m_navigationScheduler(this)
     , m_script(adoptPtr(new ScriptController(this)))
     , m_editor(Editor::create(*this))
@@ -119,23 +98,15 @@ inline LocalFrame::LocalFrame(PassRefPtr<FrameInit> frameInit)
     , m_selection(adoptPtr(new FrameSelection(this)))
     , m_eventHandler(adoptPtr(new EventHandler(this)))
     , m_inputMethodController(InputMethodController::create(*this))
-    , m_frameInit(frameInit)
     , m_pageZoomFactor(parentPageZoomFactor(this))
     , m_textZoomFactor(parentTextZoomFactor(this))
     , m_orientation(0)
     , m_inViewSourceMode(false)
-    , m_remotePlatformLayer(0)
 {
-    ASSERT(page());
-
     if (ownerElement()) {
         page()->incrementSubframeCount();
         ownerElement()->setContentFrame(*this);
     }
-
-#ifndef NDEBUG
-    frameCounter.increment();
-#endif
 }
 
 PassRefPtr<LocalFrame> LocalFrame::create(PassRefPtr<FrameInit> frameInit)
@@ -153,17 +124,7 @@ LocalFrame::~LocalFrame()
     loader().clear();
     setDOMWindow(nullptr);
 
-    // FIXME: We should not be doing all this work inside the destructor
-
-#ifndef NDEBUG
-    frameCounter.decrement();
-#endif
-
     disconnectOwnerElement();
-
-    HashSet<FrameDestructionObserver*>::iterator stop = m_destructionObservers.end();
-    for (HashSet<FrameDestructionObserver*>::iterator it = m_destructionObservers.begin(); it != stop; ++it)
-        (*it)->frameDestroyed();
 }
 
 bool LocalFrame::inScope(TreeScope* scope) const
@@ -178,16 +139,6 @@ bool LocalFrame::inScope(TreeScope* scope) const
     return owner->treeScope() == scope;
 }
 
-void LocalFrame::addDestructionObserver(FrameDestructionObserver* observer)
-{
-    m_destructionObservers.add(observer);
-}
-
-void LocalFrame::removeDestructionObserver(FrameDestructionObserver* observer)
-{
-    m_destructionObservers.remove(observer);
-}
-
 void LocalFrame::setView(PassRefPtr<FrameView> view)
 {
     // We the custom scroll bars as early as possible to prevent m_doc->detach()
@@ -222,25 +173,6 @@ void LocalFrame::sendOrientationChangeEvent(int orientation)
         window->dispatchEvent(Event::create(EventTypeNames::orientationchange));
 }
 
-FrameHost* LocalFrame::host() const
-{
-    return m_host;
-}
-
-Page* LocalFrame::page() const
-{
-    if (m_host)
-        return &m_host->page();
-    return 0;
-}
-
-Settings* LocalFrame::settings() const
-{
-    if (m_host)
-        return &m_host->settings();
-    return 0;
-}
-
 void LocalFrame::setPrinting(bool printing, const FloatSize& pageSize, const FloatSize& originalPageSize, float maximumShrinkRatio)
 {
     // In setting printing, we should not validate resources already cached for the document.
@@ -293,34 +225,9 @@ FloatSize LocalFrame::resizePageRectsKeepingRatio(const FloatSize& originalSize,
 void LocalFrame::setDOMWindow(PassRefPtr<DOMWindow> domWindow)
 {
     InspectorInstrumentation::frameWindowDiscarded(this, m_domWindow.get());
-    if (m_domWindow)
-        m_domWindow->reset();
     if (domWindow)
         script().clearWindowShell();
-    m_domWindow = domWindow;
-}
-
-static ChromeClient& emptyChromeClient()
-{
-    DEFINE_STATIC_LOCAL(EmptyChromeClient, client, ());
-    return client;
-}
-
-ChromeClient& LocalFrame::chromeClient() const
-{
-    if (Page* page = this->page())
-        return page->chrome().client();
-    return emptyChromeClient();
-}
-
-Document* LocalFrame::document() const
-{
-    return m_domWindow ? m_domWindow->document() : 0;
-}
-
-RenderView* LocalFrame::contentRenderer() const
-{
-    return document() ? document()->renderView() : 0;
+    Frame::setDOMWindow(domWindow);
 }
 
 RenderPart* LocalFrame::ownerRenderer() const
@@ -360,27 +267,18 @@ void LocalFrame::willDetachFrameHost()
     if (LocalFrame* parent = tree().parent())
         parent->loader().checkLoadComplete();
 
-    HashSet<FrameDestructionObserver*>::iterator stop = m_destructionObservers.end();
-    for (HashSet<FrameDestructionObserver*>::iterator it = m_destructionObservers.begin(); it != stop; ++it)
-        (*it)->willDetachFrameHost();
-
-    // FIXME: Page should take care of updating focus/scrolling instead of LocalFrame.
-    // FIXME: It's unclear as to why this is called more than once, but it is,
-    // so page() could be NULL.
-    if (page() && page()->focusController().focusedFrame() == this)
-        page()->focusController().setFocusedFrame(nullptr);
+    Frame::willDetachFrameHost();
+    script().clearScriptObjects();
 
     if (page() && page()->scrollingCoordinator() && m_view)
         page()->scrollingCoordinator()->willDestroyScrollableArea(m_view.get());
-
-    script().clearScriptObjects();
 }
 
 void LocalFrame::detachFromFrameHost()
 {
     // We should never be detatching the page during a Layout.
     RELEASE_ASSERT(!m_view || !m_view->isInPerformLayout());
-    m_host = 0;
+    Frame::detachFromFrameHost();
 }
 
 void LocalFrame::disconnectOwnerElement()
@@ -395,12 +293,6 @@ void LocalFrame::disconnectOwnerElement()
     m_frameInit->setOwnerElement(0);
 }
 
-bool LocalFrame::isMainFrame() const
-{
-    Page* page = this->page();
-    return page && this == page->mainFrame();
-}
-
 String LocalFrame::documentTypeString() const
 {
     if (DocumentType* doctype = document()->doctype())

third_party/WebKit/Source/core/frame/LocalFrame.h

@@ -28,139 +28,72 @@
 #ifndef LocalFrame_h
 #define LocalFrame_h
 
+#include "core/frame/Frame.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/NavigationScheduler.h"
 #include "core/page/FrameTree.h"
-#include "platform/geometry/IntSize.h"
 #include "platform/scroll/ScrollTypes.h"
-#include "wtf/Forward.h"
-#include "wtf/RefCounted.h"
-
-namespace blink {
-class WebLayer;
-}
 
 namespace WebCore {
 
-    class ChromeClient;
     class Color;
-    class DOMWindow;
-    class Document;
     class DragImage;
     class Editor;
-    class Element;
     class EventHandler;
     class FetchContext;
     class FloatSize;
-    class FrameDestructionObserver;
-    class FrameHost;
     class FrameSelection;
     class FrameView;
-    class HTMLFrameOwnerElement;
-    class HTMLTableCellElement;
     class InputMethodController;
     class IntPoint;
+    class IntSize;
     class Node;
-    class Page;
     class Range;
     class RenderPart;
-    class RenderView;
     class TreeScope;
     class ScriptController;
-    class Settings;
     class SpellChecker;
     class TreeScope;
     class VisiblePosition;
-    class Widget;
 
-    class FrameInit : public RefCounted<FrameInit> {
-    public:
-        // For creating a dummy LocalFrame
-        static PassRefPtr<FrameInit> create(FrameHost* host, FrameLoaderClient* client)
-        {
-            return adoptRef(new FrameInit(host, client));
-        }
-
-        void setFrameHost(FrameHost* host) { m_frameHost = host; }
-        FrameHost* frameHost() const { return m_frameHost; }
-
-        void setFrameLoaderClient(FrameLoaderClient* client) { m_client = client; }
-        FrameLoaderClient* frameLoaderClient() const { return m_client; }
-
-        void setOwnerElement(HTMLFrameOwnerElement* ownerElement) { m_ownerElement = ownerElement; }
-        HTMLFrameOwnerElement* ownerElement() const { return m_ownerElement; }
-
-    protected:
-        FrameInit(FrameHost* host = 0, FrameLoaderClient* client = 0)
-            : m_client(client)
-            , m_frameHost(host)
-            , m_ownerElement(0)
-        {
-        }
-
-    private:
-        FrameLoaderClient* m_client;
-        FrameHost* m_frameHost;
-        HTMLFrameOwnerElement* m_ownerElement;
-    };
-
-    class LocalFrame : public RefCounted<LocalFrame> {
+    class LocalFrame : public Frame {
     public:
         static PassRefPtr<LocalFrame> create(PassRefPtr<FrameInit>);
 
+        virtual bool isLocalFrame() const OVERRIDE { return true; }
+
         void init();
         void setView(PassRefPtr<FrameView>);
         void createView(const IntSize&, const Color&, bool,
             ScrollbarMode = ScrollbarAuto, bool horizontalLock = false,
             ScrollbarMode = ScrollbarAuto, bool verticalLock = false);
 
-        ~LocalFrame();
+        virtual ~LocalFrame();
 
-        void addDestructionObserver(FrameDestructionObserver*);
-        void removeDestructionObserver(FrameDestructionObserver*);
-
-        void willDetachFrameHost();
-        void detachFromFrameHost();
+        virtual void willDetachFrameHost() OVERRIDE;
+        virtual void detachFromFrameHost() OVERRIDE;
         void disconnectOwnerElement();
 
-        // NOTE: Page is moving out of Blink up into the browser process as
-        // part of the site-isolation (out of process iframes) work.
-        // FrameHost should be used instead where possible.
-        Page* page() const;
-        FrameHost* host() const; // Null when the frame is detached.
-
         HTMLFrameOwnerElement* ownerElement() const;
-        bool isMainFrame() const;
 
-        void setDOMWindow(PassRefPtr<DOMWindow>);
-        DOMWindow* domWindow() const;
-        Document* document() const;
+        virtual void setDOMWindow(PassRefPtr<DOMWindow>) OVERRIDE;
         FrameView* view() const;
 
-        ChromeClient& chromeClient() const;
         Editor& editor() const;
         EventHandler& eventHandler() const;
         FrameLoader& loader() const;
+        FrameTree& tree() const;
         NavigationScheduler& navigationScheduler() const;
         FrameSelection& selection() const;
-        FrameTree& tree() const;
         InputMethodController& inputMethodController() const;
         FetchContext& fetchContext() const { return loader().fetchContext(); }
         ScriptController& script();
         SpellChecker& spellChecker() const;
 
-        RenderView* contentRenderer() const; // Root of the render tree for the document contained in this frame.
         RenderPart* ownerRenderer() const; // Renderer for the element that contains this frame.
 
         void didChangeVisibilityState();
 
-        int64_t frameID() const { return m_frameID; }
-
-        // FIXME: These should move to RemoteFrame once that exists.
-        // RemotePlatformLayer is only ever set for Frames which exist in another process.
-        void setRemotePlatformLayer(blink::WebLayer* remotePlatformLayer) { m_remotePlatformLayer = remotePlatformLayer; }
-        blink::WebLayer* remotePlatformLayer() const { return m_remotePlatformLayer; }
-
     // ======== All public functions below this point are candidates to move out of LocalFrame into another class. ========
 
         bool inScope(TreeScope*) const;
@@ -171,8 +104,6 @@ namespace WebCore {
         String layerTreeAsText(unsigned flags = 0) const;
         String trackedRepaintRectsAsText() const;
 
-        Settings* settings() const; // can be NULL
-
         void setPrinting(bool printing, const FloatSize& pageSize, const FloatSize& originalPageSize, float maximumShrinkRatio);
         bool shouldUsePrintingLayout() const;
         FloatSize resizePageRectsKeepingRatio(const FloatSize& originalSize, const FloatSize& expectedSize);
@@ -217,17 +148,11 @@ namespace WebCore {
     private:
         LocalFrame(PassRefPtr<FrameInit>);
 
-        HashSet<FrameDestructionObserver*> m_destructionObservers;
-
-        // Temporary hack for history.
-        int64_t m_frameID;
-        FrameHost* m_host;
         mutable FrameTree m_treeNode;
         mutable FrameLoader m_loader;
         mutable NavigationScheduler m_navigationScheduler;
 
         RefPtr<FrameView> m_view;
-        RefPtr<DOMWindow> m_domWindow;
 
         OwnPtr<ScriptController> m_script;
         const OwnPtr<Editor> m_editor;
@@ -236,16 +161,12 @@ namespace WebCore {
         const OwnPtr<EventHandler> m_eventHandler;
         OwnPtr<InputMethodController> m_inputMethodController;
 
-        RefPtr<FrameInit> m_frameInit;
-
         float m_pageZoomFactor;
         float m_textZoomFactor;
 
         int m_orientation;
 
         bool m_inViewSourceMode;
-
-        blink::WebLayer* m_remotePlatformLayer;
     };
 
     inline void LocalFrame::init()
@@ -273,11 +194,6 @@ namespace WebCore {
         return *m_script;
     }
 
-    inline DOMWindow* LocalFrame::domWindow() const
-    {
-        return m_domWindow.get();
-    }
-
     inline FrameSelection& LocalFrame::selection() const
     {
         return *m_selection;
@@ -324,6 +240,8 @@ namespace WebCore {
         return *m_eventHandler;
     }
 
+    DEFINE_TYPE_CASTS(LocalFrame, Frame, localFrame, localFrame->isLocalFrame(), localFrame.isLocalFrame());
+
 } // namespace WebCore
 
 #endif // LocalFrame_h

third_party/WebKit/Source/core/frame/RemoteFrame.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/frame/RemoteFrame.h"
+
+namespace WebCore {
+
+inline RemoteFrame::RemoteFrame(PassRefPtr<FrameInit> frameInit)
+    : Frame(frameInit)
+{
+}
+
+PassRefPtr<RemoteFrame> RemoteFrame::create(PassRefPtr<FrameInit> frameInit)
+{
+    RefPtr<RemoteFrame> frame = adoptRef(new RemoteFrame(frameInit));
+    return frame.release();
+}
+
+RemoteFrame::~RemoteFrame()
+{
+}
+
+} // namespace WebCore

third_party/WebKit/Source/core/frame/RemoteFrame.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef RemoteFrame_h
+#define RemoteFrame_h
+
+#include "core/frame/Frame.h"
+
+namespace WebCore {
+
+class RemoteFrame: public Frame {
+public:
+    static PassRefPtr<RemoteFrame> create(PassRefPtr<FrameInit>);
+    virtual bool isRemoteFrame() const OVERRIDE { return true; }
+
+    virtual ~RemoteFrame();
+
+private:
+    RemoteFrame(PassRefPtr<FrameInit>);
+};
+
+DEFINE_TYPE_CASTS(RemoteFrame, Frame, remoteFrame, remoteFrame->isRemoteFrame(), remoteFrame.isRemoteFrame());
+
+} // namespace WebCore
+
+#endif // RemoteFrame_h