Revert the merge. Mac build is mysteriously broken.

third_party/WebKit/WebCore/page/Page.cpp

Index: third_party/WebKit/WebCore/page/Page.cpp
===================================================================
--- third_party/WebKit/WebCore/page/Page.cpp	(revision 9383)
+++ third_party/WebKit/WebCore/page/Page.cpp	(working copy)
@@ -1,648 +1,648 @@
-/*
- * Copyright (C) 2006, 2007, 2008 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 "Chrome.h"
-#include "ChromeClient.h"
-#include "ContextMenuClient.h"
-#include "ContextMenuController.h"
-#include "CSSStyleSelector.h"
-#include "EditorClient.h"
-#include "DOMWindow.h"
-#include "DragController.h"
-#include "EventNames.h"
-#include "FileSystem.h"
-#include "FocusController.h"
-#include "Frame.h"
-#include "FrameLoader.h"
-#include "FrameTree.h"
-#include "FrameView.h"
-#include "HistoryItem.h"
-#include "InspectorController.h"
-#include "Logging.h"
-#include "NetworkStateNotifier.h"
-#include "Navigator.h"
-#include "PageGroup.h"
-#include "PluginData.h"
-#include "ProgressTracker.h"
-#include "RenderWidget.h"
-#include "SelectionController.h"
-#include "Settings.h"
-#include "StringHash.h"
-#include "TextResourceDecoder.h"
-#include "Widget.h"
-#include "ScriptController.h"
-#include <wtf/HashMap.h>
-#include <wtf/RefCountedLeakCounter.h>
-#include <wtf/StdLibExtras.h>
-
-#if ENABLE(DOM_STORAGE)
-#include "LocalStorage.h"
-#include "SessionStorage.h"
-#include "StorageArea.h"
-#endif
-
-#if ENABLE(JAVASCRIPT_DEBUGGER)
-#include "JavaScriptDebugServer.h"
-#endif
-
-#if ENABLE(WML)
-#include "WMLPageState.h"
-#endif
-
-namespace WebCore {
-
-static HashSet<Page*>* allPages;
-
-#ifndef NDEBUG
-static WTF::RefCountedLeakCounter pageCounter("Page");
-#endif
-
-static void networkStateChanged()
-{
-    Vector<RefPtr<Frame> > frames;
-    
-    // Get all the frames of all the pages in all the page groups
-    HashSet<Page*>::iterator end = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it) {
-        for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext())
-            frames.append(frame);
-    }
-
-    AtomicString eventName = networkStateNotifier().onLine() ? eventNames().onlineEvent : eventNames().offlineEvent;
-    
-    for (unsigned i = 0; i < frames.size(); i++) {
-        Document* document = frames[i]->document();
-        
-        if (!document)
-            continue;
-
-        // If the document does not have a body the event should be dispatched to the document
-        Node* eventTarget = document->body();
-        if (!eventTarget)
-            eventTarget = document;
-        
-        eventTarget->dispatchEventForType(eventName, false, false);
-    }
-}
-
-Page::Page(ChromeClient* chromeClient, ContextMenuClient* contextMenuClient, EditorClient* editorClient, DragClient* dragClient, InspectorClient* inspectorClient)
-    : m_chrome(new Chrome(this, chromeClient))
-    , m_dragCaretController(new SelectionController(0, true))
-    , m_dragController(new DragController(this, dragClient))
-    , m_focusController(new FocusController(this))
-    , m_contextMenuController(new ContextMenuController(this, contextMenuClient))
-    , m_inspectorController(new InspectorController(this, inspectorClient))
-    , m_settings(new Settings(this))
-    , m_progress(new ProgressTracker)
-    , m_backForwardList(BackForwardList::create(this))
-    , m_editorClient(editorClient)
-    , m_frameCount(0)
-    , m_tabKeyCyclesThroughElements(true)
-    , m_defersLoading(false)
-    , m_inLowQualityInterpolationMode(false)
-    , m_cookieEnabled(true)
-    , m_areMemoryCacheClientCallsEnabled(true)
-    , m_mediaVolume(1)
-    , m_parentInspectorController(0)
-    , m_didLoadUserStyleSheet(false)
-    , m_userStyleSheetModificationTime(0)
-    , m_group(0)
-    , m_debugger(0)
-    , m_pendingUnloadEventCount(0)
-    , m_pendingBeforeUnloadEventCount(0)
-    , m_customHTMLTokenizerTimeDelay(-1)
-    , m_customHTMLTokenizerChunkSize(-1)
-{
-    if (!allPages) {
-        allPages = new HashSet<Page*>;
-        
-        networkStateNotifier().setNetworkStateChangedFunction(networkStateChanged);
-    }
-
-    ASSERT(!allPages->contains(this));
-    allPages->add(this);
-
-#if ENABLE(JAVASCRIPT_DEBUGGER)
-    JavaScriptDebugServer::shared().pageCreated(this);
-#endif
-
-#ifndef NDEBUG
-    pageCounter.increment();
-#endif
-}
-
-Page::~Page()
-{
-    m_mainFrame->setView(0);
-    setGroupName(String());
-    allPages->remove(this);
-    
-    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
-        if (frame->document())
-            frame->document()->documentWillBecomeInactive();
-        frame->pageDestroyed();
-    }
-    m_editorClient->pageDestroyed();
-    if (m_parentInspectorController)
-        m_parentInspectorController->pageDestroyed();
-    m_inspectorController->inspectedPageDestroyed();
-
-    m_backForwardList->close();
-
-#ifndef NDEBUG
-    pageCounter.decrement();
-
-    // Cancel keepAlive timers, to ensure we release all Frames before exiting.
-    // It's safe to do this because we prohibit closing a Page while JavaScript
-    // is executing.
-    Frame::cancelAllKeepAlive();
-#endif
-}
-
-void Page::setMainFrame(PassRefPtr<Frame> mainFrame)
-{
-    ASSERT(!m_mainFrame); // Should only be called during initialization
-    m_mainFrame = mainFrame;
-}
-
-BackForwardList* Page::backForwardList()
-{
-    return m_backForwardList.get();
-}
-
-bool Page::goBack()
-{
-    HistoryItem* item = m_backForwardList->backItem();
-    
-    if (item) {
-        goToItem(item, FrameLoadTypeBack);
-        return true;
-    }
-    return false;
-}
-
-bool Page::goForward()
-{
-    HistoryItem* item = m_backForwardList->forwardItem();
-    
-    if (item) {
-        goToItem(item, FrameLoadTypeForward);
-        return true;
-    }
-    return false;
-}
-
-void Page::goToItem(HistoryItem* item, FrameLoadType type)
-{
-    // Abort any current load if we're going to a history item
-    m_mainFrame->loader()->stopAllLoaders();
-    m_mainFrame->loader()->goToItem(item, type);
-}
-
-void Page::setGlobalHistoryItem(HistoryItem* item)
-{
-    m_globalHistoryItem = item;
-}
-
-void Page::setGroupName(const String& name)
-{
-    if (m_group && !m_group->name().isEmpty()) {
-        ASSERT(m_group != m_singlePageGroup.get());
-        ASSERT(!m_singlePageGroup);
-        m_group->removePage(this);
-    }
-
-    if (name.isEmpty())
-        m_group = 0;
-    else {
-        m_singlePageGroup.clear();
-        m_group = PageGroup::pageGroup(name);
-        m_group->addPage(this);
-    }
-}
-
-const String& Page::groupName() const
-{
-    DEFINE_STATIC_LOCAL(String, nullString, ());
-    return m_group ? m_group->name() : nullString;
-}
-
-void Page::initGroup()
-{
-    ASSERT(!m_singlePageGroup);
-    ASSERT(!m_group);
-    m_singlePageGroup.set(new PageGroup(this));
-    m_group = m_singlePageGroup.get();
-}
-
-void Page::setNeedsReapplyStyles()
-{
-    if (!allPages)
-        return;
-    HashSet<Page*>::iterator end = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it)
-        for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext())
-            frame->setNeedsReapplyStyles();
-}
-
-void Page::refreshPlugins(bool reload)
-{
-    if (!allPages)
-        return;
-
-    PluginData::refresh();
-
-    Vector<RefPtr<Frame> > framesNeedingReload;
-
-    HashSet<Page*>::iterator end = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it) {
-        (*it)->m_pluginData = 0;
-
-        if (reload) {
-            for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
-                if (frame->loader()->containsPlugins())
-                    framesNeedingReload.append(frame);
-            }
-        }
-    }
-
-    for (size_t i = 0; i < framesNeedingReload.size(); ++i)
-        framesNeedingReload[i]->loader()->reload();
-}
-
-PluginData* Page::pluginData() const
-{
-    if (!settings()->arePluginsEnabled())
-        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)
-        : curr->tree()->traversePreviousWithWrap(wrapFlag);
-}
-
-bool Page::findString(const String& target, TextCaseSensitivity caseSensitivity, FindDirection direction, bool shouldWrap)
-{
-    if (target.isEmpty() || !mainFrame())
-        return false;
-
-    Frame* frame = focusController()->focusedOrMainFrame();
-    Frame* startFrame = frame;
-    do {
-        if (frame->findString(target, direction == FindDirectionForward, caseSensitivity == TextCaseSensitive, false, true)) {
-            if (frame != startFrame)
-                startFrame->selection()->clear();
-            focusController()->setFocusedFrame(frame);
-            return true;
-        }
-        frame = incrementFrame(frame, direction == FindDirectionForward, shouldWrap);
-    } while (frame && frame != startFrame);
-
-    // Search contents of startFrame, on the other side of the selection that we did earlier.
-    // We cheat a bit and just research with wrap on
-    if (shouldWrap && !startFrame->selection()->isNone()) {
-        bool found = startFrame->findString(target, direction == FindDirectionForward, caseSensitivity == TextCaseSensitive, true, true);
-        focusController()->setFocusedFrame(frame);
-        return found;
-    }
-
-    return false;
-}
-
-unsigned int Page::markAllMatchesForText(const String& target, TextCaseSensitivity caseSensitivity, bool shouldHighlight, unsigned limit)
-{
-    if (target.isEmpty() || !mainFrame())
-        return 0;
-
-    unsigned matches = 0;
-
-    Frame* frame = mainFrame();
-    do {
-        frame->setMarkedTextMatchesAreHighlighted(shouldHighlight);
-        matches += frame->markAllMatchesForText(target, caseSensitivity == TextCaseSensitive, (limit == 0) ? 0 : (limit - matches));
-        frame = incrementFrame(frame, true, false);
-    } while (frame);
-
-    return matches;
-}
-
-void Page::unmarkAllTextMatches()
-{
-    if (!mainFrame())
-        return;
-
-    Frame* frame = mainFrame();
-    do {
-        if (Document* document = frame->document())
-            document->removeMarkers(DocumentMarker::TextMatch);
-        frame = incrementFrame(frame, true, false);
-    } while (frame);
-}
-
-const Selection& Page::selection() const
-{
-    return focusController()->focusedOrMainFrame()->selection()->selection();
-}
-
-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);
-}
-
-void Page::clearUndoRedoOperations()
-{
-    m_editorClient->clearUndoRedoOperations();
-}
-
-bool Page::inLowQualityImageInterpolationMode() const
-{
-    return m_inLowQualityInterpolationMode;
-}
-
-void Page::setInLowQualityImageInterpolationMode(bool mode)
-{
-    m_inLowQualityInterpolationMode = mode;
-}
-
-void Page::setMediaVolume(float volume)
-{
-    if (volume < 0 || volume > 1)
-        return;
-
-    if (m_mediaVolume == volume)
-        return;
-
-    m_mediaVolume = volume;
-    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
-        if (frame->document())
-            frame->document()->mediaVolumeDidChange();
-    }
-}
-
-void Page::didMoveOnscreen()
-{
-    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
-        if (frame->view())
-            frame->view()->didMoveOnscreen();
-    }
-}
-
-void Page::willMoveOffscreen()
-{
-    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
-        if (frame->view())
-            frame->view()->willMoveOffscreen();
-    }
-}
-
-void Page::userStyleSheetLocationChanged()
-{
-#if !FRAME_LOADS_USER_STYLESHEET
-    // FIXME: We should provide a way to load other types of URLs than just
-    // file: (e.g., http:, data:).
-    if (m_settings->userStyleSheetLocation().isLocalFile())
-        m_userStyleSheetPath = m_settings->userStyleSheetLocation().fileSystemPath();
-    else
-        m_userStyleSheetPath = String();
-
-    m_didLoadUserStyleSheet = false;
-    m_userStyleSheet = String();
-    m_userStyleSheetModificationTime = 0;
-#endif
-}
-
-const String& Page::userStyleSheet() const
-{
-    if (m_userStyleSheetPath.isEmpty()) {
-        ASSERT(m_userStyleSheet.isEmpty());
-        return m_userStyleSheet;
-    }
-
-    time_t modTime;
-    if (!getFileModificationTime(m_userStyleSheetPath, modTime)) {
-        // The stylesheet either doesn't exist, was just deleted, or is
-        // otherwise unreadable. If we've read the stylesheet before, we should
-        // throw away that data now as it no longer represents what's on disk.
-        m_userStyleSheet = String();
-        return m_userStyleSheet;
-    }
-
-    // If the stylesheet hasn't changed since the last time we read it, we can
-    // just return the old data.
-    if (m_didLoadUserStyleSheet && modTime <= m_userStyleSheetModificationTime)
-        return m_userStyleSheet;
-
-    m_didLoadUserStyleSheet = true;
-    m_userStyleSheet = String();
-    m_userStyleSheetModificationTime = modTime;
-
-    // FIXME: It would be better to load this asynchronously to avoid blocking
-    // the process, but we will first need to create an asynchronous loading
-    // mechanism that is not tied to a particular Frame. We will also have to
-    // determine what our behavior should be before the stylesheet is loaded
-    // and what should happen when it finishes loading, especially with respect
-    // to when the load event fires, when Document::close is called, and when
-    // layout/paint are allowed to happen.
-    RefPtr<SharedBuffer> data = SharedBuffer::createWithContentsOfFile(m_userStyleSheetPath);
-    if (!data)
-        return m_userStyleSheet;
-
-    m_userStyleSheet = TextResourceDecoder::create("text/css")->decode(data->data(), data->size());
-
-    return m_userStyleSheet;
-}
-
-void Page::removeAllVisitedLinks()
-{
-    if (!allPages)
-        return;
-    HashSet<PageGroup*> groups;
-    HashSet<Page*>::iterator pagesEnd = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != pagesEnd; ++it) {
-        if (PageGroup* group = (*it)->groupPtr())
-            groups.add(group);
-    }
-    HashSet<PageGroup*>::iterator groupsEnd = groups.end();
-    for (HashSet<PageGroup*>::iterator it = groups.begin(); it != groupsEnd; ++it)
-        (*it)->removeVisitedLinks();
-}
-
-void Page::allVisitedStateChanged(PageGroup* group)
-{
-    ASSERT(group);
-    ASSERT(allPages);
-    HashSet<Page*>::iterator pagesEnd = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != pagesEnd; ++it) {
-        Page* page = *it;
-        if (page->m_group != group)
-            continue;
-        for (Frame* frame = page->m_mainFrame.get(); frame; frame = frame->tree()->traverseNext()) {
-            if (CSSStyleSelector* styleSelector = frame->document()->styleSelector())
-                styleSelector->allVisitedStateChanged();
-        }
-    }
-}
-
-void Page::visitedStateChanged(PageGroup* group, LinkHash visitedLinkHash)
-{
-    ASSERT(group);
-    ASSERT(allPages);
-    HashSet<Page*>::iterator pagesEnd = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != pagesEnd; ++it) {
-        Page* page = *it;
-        if (page->m_group != group)
-            continue;
-        for (Frame* frame = page->m_mainFrame.get(); frame; frame = frame->tree()->traverseNext()) {
-            if (CSSStyleSelector* styleSelector = frame->document()->styleSelector())
-                styleSelector->visitedStateChanged(visitedLinkHash);
-        }
-    }
-}
-
-void Page::setDebuggerForAllPages(JSC::Debugger* debugger)
-{
-    ASSERT(allPages);
-
-    HashSet<Page*>::iterator end = allPages->end();
-    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it)
-        (*it)->setDebugger(debugger);
-}
-
-void Page::setDebugger(JSC::Debugger* debugger)
-{
-    if (m_debugger == debugger)
-        return;
-
-    m_debugger = debugger;
-
-    for (Frame* frame = m_mainFrame.get(); frame; frame = frame->tree()->traverseNext())
-        frame->script()->attachDebugger(m_debugger);
-}
-
-#if ENABLE(DOM_STORAGE)
-SessionStorage* Page::sessionStorage(bool optionalCreate)
-{
-    if (!m_sessionStorage && optionalCreate)
-        m_sessionStorage = SessionStorage::create(this);
-
-    return m_sessionStorage.get();
-}
-
-void Page::setSessionStorage(PassRefPtr<SessionStorage> newStorage)
-{
-    ASSERT(newStorage->page() == this);
-    m_sessionStorage = newStorage;
-}
-#endif
-    
-unsigned Page::pendingUnloadEventCount()
-{
-    return m_pendingUnloadEventCount;
-}
-    
-void Page::changePendingUnloadEventCount(int delta) 
-{
-    if (!delta)
-        return;
-    ASSERT( (delta + (int)m_pendingUnloadEventCount) >= 0 );
-    
-    if (m_pendingUnloadEventCount == 0)
-        m_chrome->disableSuddenTermination();
-    else if ((m_pendingUnloadEventCount + delta) == 0)
-        m_chrome->enableSuddenTermination();
-    
-    m_pendingUnloadEventCount += delta;
-    return; 
-}
-    
-unsigned Page::pendingBeforeUnloadEventCount()
-{
-    return m_pendingBeforeUnloadEventCount;
-}
-    
-void Page::changePendingBeforeUnloadEventCount(int delta) 
-{
-    if (!delta)
-        return;
-    ASSERT( (delta + (int)m_pendingBeforeUnloadEventCount) >= 0 );
-    
-    if (m_pendingBeforeUnloadEventCount == 0)
-        m_chrome->disableSuddenTermination();
-    else if ((m_pendingBeforeUnloadEventCount + delta) == 0)
-        m_chrome->enableSuddenTermination();
-    
-    m_pendingBeforeUnloadEventCount += delta;
-    return; 
-}
-
-#if ENABLE(WML)
-WMLPageState* Page::wmlPageState()
-{
-    if (!m_wmlPageState)    
-        m_wmlPageState.set(new WMLPageState(this));
-    return m_wmlPageState.get(); 
-}
-#endif
-
-void Page::setCustomHTMLTokenizerTimeDelay(double customHTMLTokenizerTimeDelay)
-{
-    if (customHTMLTokenizerTimeDelay < 0) {
-        m_customHTMLTokenizerTimeDelay = -1;
-        return;
-    }
-    m_customHTMLTokenizerTimeDelay = customHTMLTokenizerTimeDelay;
-}
-
-void Page::setCustomHTMLTokenizerChunkSize(int customHTMLTokenizerChunkSize)
-{
-    if (customHTMLTokenizerChunkSize < 0) {
-        m_customHTMLTokenizerChunkSize = -1;
-        return;
-    }
-    m_customHTMLTokenizerChunkSize = customHTMLTokenizerChunkSize;
-}
-
-void Page::setMemoryCacheClientCallsEnabled(bool enabled)
-{
-    if (m_areMemoryCacheClientCallsEnabled == enabled)
-        return;
-
-    m_areMemoryCacheClientCallsEnabled = enabled;
-    if (!enabled)
-        return;
-
-    for (RefPtr<Frame> frame = mainFrame(); frame; frame = frame->tree()->traverseNext())
-        frame->loader()->tellClientAboutPastMemoryCacheLoads();
-}
-
-} // namespace WebCore
+/*
+ * Copyright (C) 2006, 2007, 2008 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 "Chrome.h"
+#include "ChromeClient.h"
+#include "ContextMenuClient.h"
+#include "ContextMenuController.h"
+#include "CSSStyleSelector.h"
+#include "EditorClient.h"
+#include "DOMWindow.h"
+#include "DragController.h"
+#include "EventNames.h"
+#include "FileSystem.h"
+#include "FocusController.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "HistoryItem.h"
+#include "InspectorController.h"
+#include "Logging.h"
+#include "NetworkStateNotifier.h"
+#include "Navigator.h"
+#include "PageGroup.h"
+#include "PluginData.h"
+#include "ProgressTracker.h"
+#include "RenderWidget.h"
+#include "SelectionController.h"
+#include "Settings.h"
+#include "StringHash.h"
+#include "TextResourceDecoder.h"
+#include "Widget.h"
+#include "ScriptController.h"
+#include <wtf/HashMap.h>
+#include <wtf/RefCountedLeakCounter.h>
+#include <wtf/StdLibExtras.h>
+
+#if ENABLE(DOM_STORAGE)
+#include "LocalStorage.h"
+#include "SessionStorage.h"
+#include "StorageArea.h"
+#endif
+
+#if ENABLE(JAVASCRIPT_DEBUGGER)
+#include "JavaScriptDebugServer.h"
+#endif
+
+#if ENABLE(WML)
+#include "WMLPageState.h"
+#endif
+
+namespace WebCore {
+
+static HashSet<Page*>* allPages;
+
+#ifndef NDEBUG
+static WTF::RefCountedLeakCounter pageCounter("Page");
+#endif
+
+static void networkStateChanged()
+{
+    Vector<RefPtr<Frame> > frames;
+    
+    // Get all the frames of all the pages in all the page groups
+    HashSet<Page*>::iterator end = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it) {
+        for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext())
+            frames.append(frame);
+    }
+
+    AtomicString eventName = networkStateNotifier().onLine() ? eventNames().onlineEvent : eventNames().offlineEvent;
+    
+    for (unsigned i = 0; i < frames.size(); i++) {
+        Document* document = frames[i]->document();
+        
+        if (!document)
+            continue;
+
+        // If the document does not have a body the event should be dispatched to the document
+        EventTargetNode* eventTarget = document->body();
+        if (!eventTarget)
+            eventTarget = document;
+        
+        eventTarget->dispatchEventForType(eventName, false, false);
+    }
+}
+
+Page::Page(ChromeClient* chromeClient, ContextMenuClient* contextMenuClient, EditorClient* editorClient, DragClient* dragClient, InspectorClient* inspectorClient)
+    : m_chrome(new Chrome(this, chromeClient))
+    , m_dragCaretController(new SelectionController(0, true))
+    , m_dragController(new DragController(this, dragClient))
+    , m_focusController(new FocusController(this))
+    , m_contextMenuController(new ContextMenuController(this, contextMenuClient))
+    , m_inspectorController(new InspectorController(this, inspectorClient))
+    , m_settings(new Settings(this))
+    , m_progress(new ProgressTracker)
+    , m_backForwardList(BackForwardList::create(this))
+    , m_editorClient(editorClient)
+    , m_frameCount(0)
+    , m_tabKeyCyclesThroughElements(true)
+    , m_defersLoading(false)
+    , m_inLowQualityInterpolationMode(false)
+    , m_cookieEnabled(true)
+    , m_areMemoryCacheClientCallsEnabled(true)
+    , m_mediaVolume(1)
+    , m_parentInspectorController(0)
+    , m_didLoadUserStyleSheet(false)
+    , m_userStyleSheetModificationTime(0)
+    , m_group(0)
+    , m_debugger(0)
+    , m_pendingUnloadEventCount(0)
+    , m_pendingBeforeUnloadEventCount(0)
+    , m_customHTMLTokenizerTimeDelay(-1)
+    , m_customHTMLTokenizerChunkSize(-1)
+{
+    if (!allPages) {
+        allPages = new HashSet<Page*>;
+        
+        networkStateNotifier().setNetworkStateChangedFunction(networkStateChanged);
+    }
+
+    ASSERT(!allPages->contains(this));
+    allPages->add(this);
+
+#if ENABLE(JAVASCRIPT_DEBUGGER)
+    JavaScriptDebugServer::shared().pageCreated(this);
+#endif
+
+#ifndef NDEBUG
+    pageCounter.increment();
+#endif
+}
+
+Page::~Page()
+{
+    m_mainFrame->setView(0);
+    setGroupName(String());
+    allPages->remove(this);
+    
+    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+        if (frame->document())
+            frame->document()->documentWillBecomeInactive();
+        frame->pageDestroyed();
+    }
+    m_editorClient->pageDestroyed();
+    if (m_parentInspectorController)
+        m_parentInspectorController->pageDestroyed();
+    m_inspectorController->inspectedPageDestroyed();
+
+    m_backForwardList->close();
+
+#ifndef NDEBUG
+    pageCounter.decrement();
+
+    // Cancel keepAlive timers, to ensure we release all Frames before exiting.
+    // It's safe to do this because we prohibit closing a Page while JavaScript
+    // is executing.
+    Frame::cancelAllKeepAlive();
+#endif
+}
+
+void Page::setMainFrame(PassRefPtr<Frame> mainFrame)
+{
+    ASSERT(!m_mainFrame); // Should only be called during initialization
+    m_mainFrame = mainFrame;
+}
+
+BackForwardList* Page::backForwardList()
+{
+    return m_backForwardList.get();
+}
+
+bool Page::goBack()
+{
+    HistoryItem* item = m_backForwardList->backItem();
+    
+    if (item) {
+        goToItem(item, FrameLoadTypeBack);
+        return true;
+    }
+    return false;
+}
+
+bool Page::goForward()
+{
+    HistoryItem* item = m_backForwardList->forwardItem();
+    
+    if (item) {
+        goToItem(item, FrameLoadTypeForward);
+        return true;
+    }
+    return false;
+}
+
+void Page::goToItem(HistoryItem* item, FrameLoadType type)
+{
+    // Abort any current load if we're going to a history item
+    m_mainFrame->loader()->stopAllLoaders();
+    m_mainFrame->loader()->goToItem(item, type);
+}
+
+void Page::setGlobalHistoryItem(HistoryItem* item)
+{
+    m_globalHistoryItem = item;
+}
+
+void Page::setGroupName(const String& name)
+{
+    if (m_group && !m_group->name().isEmpty()) {
+        ASSERT(m_group != m_singlePageGroup.get());
+        ASSERT(!m_singlePageGroup);
+        m_group->removePage(this);
+    }
+
+    if (name.isEmpty())
+        m_group = 0;
+    else {
+        m_singlePageGroup.clear();
+        m_group = PageGroup::pageGroup(name);
+        m_group->addPage(this);
+    }
+}
+
+const String& Page::groupName() const
+{
+    DEFINE_STATIC_LOCAL(String, nullString, ());
+    return m_group ? m_group->name() : nullString;
+}
+
+void Page::initGroup()
+{
+    ASSERT(!m_singlePageGroup);
+    ASSERT(!m_group);
+    m_singlePageGroup.set(new PageGroup(this));
+    m_group = m_singlePageGroup.get();
+}
+
+void Page::setNeedsReapplyStyles()
+{
+    if (!allPages)
+        return;
+    HashSet<Page*>::iterator end = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it)
+        for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext())
+            frame->setNeedsReapplyStyles();
+}
+
+void Page::refreshPlugins(bool reload)
+{
+    if (!allPages)
+        return;
+
+    PluginData::refresh();
+
+    Vector<RefPtr<Frame> > framesNeedingReload;
+
+    HashSet<Page*>::iterator end = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it) {
+        (*it)->m_pluginData = 0;
+
+        if (reload) {
+            for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+                if (frame->loader()->containsPlugins())
+                    framesNeedingReload.append(frame);
+            }
+        }
+    }
+
+    for (size_t i = 0; i < framesNeedingReload.size(); ++i)
+        framesNeedingReload[i]->loader()->reload();
+}
+
+PluginData* Page::pluginData() const
+{
+    if (!settings()->arePluginsEnabled())
+        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)
+        : curr->tree()->traversePreviousWithWrap(wrapFlag);
+}
+
+bool Page::findString(const String& target, TextCaseSensitivity caseSensitivity, FindDirection direction, bool shouldWrap)
+{
+    if (target.isEmpty() || !mainFrame())
+        return false;
+
+    Frame* frame = focusController()->focusedOrMainFrame();
+    Frame* startFrame = frame;
+    do {
+        if (frame->findString(target, direction == FindDirectionForward, caseSensitivity == TextCaseSensitive, false, true)) {
+            if (frame != startFrame)
+                startFrame->selection()->clear();
+            focusController()->setFocusedFrame(frame);
+            return true;
+        }
+        frame = incrementFrame(frame, direction == FindDirectionForward, shouldWrap);
+    } while (frame && frame != startFrame);
+
+    // Search contents of startFrame, on the other side of the selection that we did earlier.
+    // We cheat a bit and just research with wrap on
+    if (shouldWrap && !startFrame->selection()->isNone()) {
+        bool found = startFrame->findString(target, direction == FindDirectionForward, caseSensitivity == TextCaseSensitive, true, true);
+        focusController()->setFocusedFrame(frame);
+        return found;
+    }
+
+    return false;
+}
+
+unsigned int Page::markAllMatchesForText(const String& target, TextCaseSensitivity caseSensitivity, bool shouldHighlight, unsigned limit)
+{
+    if (target.isEmpty() || !mainFrame())
+        return 0;
+
+    unsigned matches = 0;
+
+    Frame* frame = mainFrame();
+    do {
+        frame->setMarkedTextMatchesAreHighlighted(shouldHighlight);
+        matches += frame->markAllMatchesForText(target, caseSensitivity == TextCaseSensitive, (limit == 0) ? 0 : (limit - matches));
+        frame = incrementFrame(frame, true, false);
+    } while (frame);
+
+    return matches;
+}
+
+void Page::unmarkAllTextMatches()
+{
+    if (!mainFrame())
+        return;
+
+    Frame* frame = mainFrame();
+    do {
+        if (Document* document = frame->document())
+            document->removeMarkers(DocumentMarker::TextMatch);
+        frame = incrementFrame(frame, true, false);
+    } while (frame);
+}
+
+const Selection& Page::selection() const
+{
+    return focusController()->focusedOrMainFrame()->selection()->selection();
+}
+
+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);
+}
+
+void Page::clearUndoRedoOperations()
+{
+    m_editorClient->clearUndoRedoOperations();
+}
+
+bool Page::inLowQualityImageInterpolationMode() const
+{
+    return m_inLowQualityInterpolationMode;
+}
+
+void Page::setInLowQualityImageInterpolationMode(bool mode)
+{
+    m_inLowQualityInterpolationMode = mode;
+}
+
+void Page::setMediaVolume(float volume)
+{
+    if (volume < 0 || volume > 1)
+        return;
+
+    if (m_mediaVolume == volume)
+        return;
+
+    m_mediaVolume = volume;
+    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+        if (frame->document())
+            frame->document()->mediaVolumeDidChange();
+    }
+}
+
+void Page::didMoveOnscreen()
+{
+    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+        if (frame->view())
+            frame->view()->didMoveOnscreen();
+    }
+}
+
+void Page::willMoveOffscreen()
+{
+    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+        if (frame->view())
+            frame->view()->willMoveOffscreen();
+    }
+}
+
+void Page::userStyleSheetLocationChanged()
+{
+#if !FRAME_LOADS_USER_STYLESHEET
+    // FIXME: We should provide a way to load other types of URLs than just
+    // file: (e.g., http:, data:).
+    if (m_settings->userStyleSheetLocation().isLocalFile())
+        m_userStyleSheetPath = m_settings->userStyleSheetLocation().fileSystemPath();
+    else
+        m_userStyleSheetPath = String();
+
+    m_didLoadUserStyleSheet = false;
+    m_userStyleSheet = String();
+    m_userStyleSheetModificationTime = 0;
+#endif
+}
+
+const String& Page::userStyleSheet() const
+{
+    if (m_userStyleSheetPath.isEmpty()) {
+        ASSERT(m_userStyleSheet.isEmpty());
+        return m_userStyleSheet;
+    }
+
+    time_t modTime;
+    if (!getFileModificationTime(m_userStyleSheetPath, modTime)) {
+        // The stylesheet either doesn't exist, was just deleted, or is
+        // otherwise unreadable. If we've read the stylesheet before, we should
+        // throw away that data now as it no longer represents what's on disk.
+        m_userStyleSheet = String();
+        return m_userStyleSheet;
+    }
+
+    // If the stylesheet hasn't changed since the last time we read it, we can
+    // just return the old data.
+    if (m_didLoadUserStyleSheet && modTime <= m_userStyleSheetModificationTime)
+        return m_userStyleSheet;
+
+    m_didLoadUserStyleSheet = true;
+    m_userStyleSheet = String();
+    m_userStyleSheetModificationTime = modTime;
+
+    // FIXME: It would be better to load this asynchronously to avoid blocking
+    // the process, but we will first need to create an asynchronous loading
+    // mechanism that is not tied to a particular Frame. We will also have to
+    // determine what our behavior should be before the stylesheet is loaded
+    // and what should happen when it finishes loading, especially with respect
+    // to when the load event fires, when Document::close is called, and when
+    // layout/paint are allowed to happen.
+    RefPtr<SharedBuffer> data = SharedBuffer::createWithContentsOfFile(m_userStyleSheetPath);
+    if (!data)
+        return m_userStyleSheet;
+
+    m_userStyleSheet = TextResourceDecoder::create("text/css")->decode(data->data(), data->size());
+
+    return m_userStyleSheet;
+}
+
+void Page::removeAllVisitedLinks()
+{
+    if (!allPages)
+        return;
+    HashSet<PageGroup*> groups;
+    HashSet<Page*>::iterator pagesEnd = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != pagesEnd; ++it) {
+        if (PageGroup* group = (*it)->groupPtr())
+            groups.add(group);
+    }
+    HashSet<PageGroup*>::iterator groupsEnd = groups.end();
+    for (HashSet<PageGroup*>::iterator it = groups.begin(); it != groupsEnd; ++it)
+        (*it)->removeVisitedLinks();
+}
+
+void Page::allVisitedStateChanged(PageGroup* group)
+{
+    ASSERT(group);
+    ASSERT(allPages);
+    HashSet<Page*>::iterator pagesEnd = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != pagesEnd; ++it) {
+        Page* page = *it;
+        if (page->m_group != group)
+            continue;
+        for (Frame* frame = page->m_mainFrame.get(); frame; frame = frame->tree()->traverseNext()) {
+            if (CSSStyleSelector* styleSelector = frame->document()->styleSelector())
+                styleSelector->allVisitedStateChanged();
+        }
+    }
+}
+
+void Page::visitedStateChanged(PageGroup* group, LinkHash visitedLinkHash)
+{
+    ASSERT(group);
+    ASSERT(allPages);
+    HashSet<Page*>::iterator pagesEnd = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != pagesEnd; ++it) {
+        Page* page = *it;
+        if (page->m_group != group)
+            continue;
+        for (Frame* frame = page->m_mainFrame.get(); frame; frame = frame->tree()->traverseNext()) {
+            if (CSSStyleSelector* styleSelector = frame->document()->styleSelector())
+                styleSelector->visitedStateChanged(visitedLinkHash);
+        }
+    }
+}
+
+void Page::setDebuggerForAllPages(JSC::Debugger* debugger)
+{
+    ASSERT(allPages);
+
+    HashSet<Page*>::iterator end = allPages->end();
+    for (HashSet<Page*>::iterator it = allPages->begin(); it != end; ++it)
+        (*it)->setDebugger(debugger);
+}
+
+void Page::setDebugger(JSC::Debugger* debugger)
+{
+    if (m_debugger == debugger)
+        return;
+
+    m_debugger = debugger;
+
+    for (Frame* frame = m_mainFrame.get(); frame; frame = frame->tree()->traverseNext())
+        frame->script()->attachDebugger(m_debugger);
+}
+
+#if ENABLE(DOM_STORAGE)
+SessionStorage* Page::sessionStorage(bool optionalCreate)
+{
+    if (!m_sessionStorage && optionalCreate)
+        m_sessionStorage = SessionStorage::create(this);
+
+    return m_sessionStorage.get();
+}
+
+void Page::setSessionStorage(PassRefPtr<SessionStorage> newStorage)
+{
+    ASSERT(newStorage->page() == this);
+    m_sessionStorage = newStorage;
+}
+#endif
+    
+unsigned Page::pendingUnloadEventCount()
+{
+    return m_pendingUnloadEventCount;
+}
+    
+void Page::changePendingUnloadEventCount(int delta) 
+{
+    if (!delta)
+        return;
+    ASSERT( (delta + (int)m_pendingUnloadEventCount) >= 0 );
+    
+    if (m_pendingUnloadEventCount == 0)
+        m_chrome->disableSuddenTermination();
+    else if ((m_pendingUnloadEventCount + delta) == 0)
+        m_chrome->enableSuddenTermination();
+    
+    m_pendingUnloadEventCount += delta;
+    return; 
+}
+    
+unsigned Page::pendingBeforeUnloadEventCount()
+{
+    return m_pendingBeforeUnloadEventCount;
+}
+    
+void Page::changePendingBeforeUnloadEventCount(int delta) 
+{
+    if (!delta)
+        return;
+    ASSERT( (delta + (int)m_pendingBeforeUnloadEventCount) >= 0 );
+    
+    if (m_pendingBeforeUnloadEventCount == 0)
+        m_chrome->disableSuddenTermination();
+    else if ((m_pendingBeforeUnloadEventCount + delta) == 0)
+        m_chrome->enableSuddenTermination();
+    
+    m_pendingBeforeUnloadEventCount += delta;
+    return; 
+}
+
+#if ENABLE(WML)
+WMLPageState* Page::wmlPageState()
+{
+    if (!m_wmlPageState)    
+        m_wmlPageState.set(new WMLPageState(this));
+    return m_wmlPageState.get(); 
+}
+#endif
+
+void Page::setCustomHTMLTokenizerTimeDelay(double customHTMLTokenizerTimeDelay)
+{
+    if (customHTMLTokenizerTimeDelay < 0) {
+        m_customHTMLTokenizerTimeDelay = -1;
+        return;
+    }
+    m_customHTMLTokenizerTimeDelay = customHTMLTokenizerTimeDelay;
+}
+
+void Page::setCustomHTMLTokenizerChunkSize(int customHTMLTokenizerChunkSize)
+{
+    if (customHTMLTokenizerChunkSize < 0) {
+        m_customHTMLTokenizerChunkSize = -1;
+        return;
+    }
+    m_customHTMLTokenizerChunkSize = customHTMLTokenizerChunkSize;
+}
+
+void Page::setMemoryCacheClientCallsEnabled(bool enabled)
+{
+    if (m_areMemoryCacheClientCallsEnabled == enabled)
+        return;
+
+    m_areMemoryCacheClientCallsEnabled = enabled;
+    if (!enabled)
+        return;
+
+    for (RefPtr<Frame> frame = mainFrame(); frame; frame = frame->tree()->traverseNext())
+        frame->loader()->tellClientAboutPastMemoryCacheLoads();
+}
+
+} // namespace WebCore