Add m-esr52 at 52.6.0

1 files changed, 1007 insertions, 0 deletions

diff --git a/dom/base/nsPIDOMWindow.h b/dom/base/nsPIDOMWindow.h
new file mode 100644
index 0000000000..45823057a5
--- /dev/null
+++ b/dom/base/nsPIDOMWindow.h
@@ -0,0 +1,1007 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsPIDOMWindow_h__
+#define nsPIDOMWindow_h__
+
+#include "nsIDOMWindow.h"
+#include "mozIDOMWindow.h"
+
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+#include "mozilla/dom/EventTarget.h"
+#include "js/TypeDecls.h"
+#include "nsRefPtrHashtable.h"
+
+// Only fired for inner windows.
+#define DOM_WINDOW_DESTROYED_TOPIC "dom-window-destroyed"
+#define DOM_WINDOW_FROZEN_TOPIC "dom-window-frozen"
+#define DOM_WINDOW_THAWED_TOPIC "dom-window-thawed"
+
+class nsGlobalWindow;
+class nsIArray;
+class nsIContent;
+class nsICSSDeclaration;
+class nsIDocShell;
+class nsIDocShellLoadInfo;
+class nsIDocument;
+class nsIIdleObserver;
+class nsIPrincipal;
+class nsIScriptTimeoutHandler;
+class nsIURI;
+class nsPIDOMWindowInner;
+class nsPIDOMWindowOuter;
+class nsPIWindowRoot;
+class nsXBLPrototypeHandler;
+
+typedef uint32_t SuspendTypes;
+
+namespace mozilla {
+class ThrottledEventQueue;
+namespace dom {
+class AudioContext;
+class DocGroup;
+class TabGroup;
+class Element;
+class Performance;
+class ServiceWorkerRegistration;
+class Timeout;
+class CustomElementRegistry;
+enum class CallerType : uint32_t;
+} // namespace dom
+} // namespace mozilla
+
+// Popup control state enum. The values in this enum must go from most
+// permissive to least permissive so that it's safe to push state in
+// all situations. Pushing popup state onto the stack never makes the
+// current popup state less permissive (see
+// nsGlobalWindow::PushPopupControlState()).
+enum PopupControlState {
+  openAllowed = 0,  // open that window without worries
+  openControlled,   // it's a popup, but allow it
+  openAbused,       // it's a popup. disallow it, but allow domain override.
+  openOverridden    // disallow window open
+};
+
+enum UIStateChangeType
+{
+  UIStateChangeType_NoChange,
+  UIStateChangeType_Set,
+  UIStateChangeType_Clear,
+  UIStateChangeType_Invalid // used for serialization only
+};
+
+enum class FullscreenReason
+{
+  // Toggling the fullscreen mode requires trusted context.
+  ForFullscreenMode,
+  // Fullscreen API is the API provided to untrusted content.
+  ForFullscreenAPI,
+  // This reason can only be used with exiting fullscreen.
+  // It is otherwise identical to eForFullscreenAPI except it would
+  // suppress the fullscreen transition.
+  ForForceExitFullscreen
+};
+
+
+// nsPIDOMWindowInner and nsPIDOMWindowOuter are identical in all respects
+// except for the type name. They *must* remain identical so that we can
+// reinterpret_cast between them.
+template<class T>
+class nsPIDOMWindow : public T
+{
+public:
+  nsPIDOMWindowInner* AsInner();
+  const nsPIDOMWindowInner* AsInner() const;
+  nsPIDOMWindowOuter* AsOuter();
+  const nsPIDOMWindowOuter* AsOuter() const;
+
+  virtual nsPIDOMWindowOuter* GetPrivateRoot() = 0;
+  virtual mozilla::dom::CustomElementRegistry* CustomElements() = 0;
+  // Outer windows only.
+  virtual void ActivateOrDeactivate(bool aActivate) = 0;
+
+  // this is called GetTopWindowRoot to avoid conflicts with nsIDOMWindow::GetWindowRoot
+  /**
+   * |top| gets the root of the window hierarchy.
+   *
+   * This function does not cross chrome-content boundaries, so if this
+   * window's parent is of a different type, |top| will return this window.
+   *
+   * When script reads the top property, we run GetScriptableTop, which
+   * will not cross an <iframe mozbrowser> boundary.
+   *
+   * In contrast, C++ calls to GetTop are forwarded to GetRealTop, which
+   * ignores <iframe mozbrowser> boundaries.
+   */
+
+  virtual already_AddRefed<nsPIDOMWindowOuter> GetTop() = 0; // Outer only
+  virtual already_AddRefed<nsPIDOMWindowOuter> GetParent() = 0;
+  virtual nsPIDOMWindowOuter* GetScriptableTop() = 0;
+  virtual nsPIDOMWindowOuter* GetScriptableParent() = 0;
+  virtual already_AddRefed<nsPIWindowRoot> GetTopWindowRoot() = 0;
+
+  bool IsRootOuterWindow()
+  {
+    MOZ_ASSERT(IsOuterWindow());
+    return mIsRootOuterWindow;
+  }
+
+  /**
+   * Behavies identically to GetScriptableParent extept that it returns null
+   * if GetScriptableParent would return this window.
+   */
+  virtual nsPIDOMWindowOuter* GetScriptableParentOrNull() = 0;
+
+  // Inner windows only.
+  virtual nsresult RegisterIdleObserver(nsIIdleObserver* aIdleObserver) = 0;
+  virtual nsresult UnregisterIdleObserver(nsIIdleObserver* aIdleObserver) = 0;
+
+  virtual bool IsTopLevelWindowActive() = 0;
+
+  // Outer windows only.
+  virtual void SetActive(bool aActive)
+  {
+    MOZ_ASSERT(IsOuterWindow());
+    mIsActive = aActive;
+  }
+
+  virtual void SetIsBackground(bool aIsBackground)
+  {
+    MOZ_ASSERT(IsOuterWindow());
+    mIsBackground = aIsBackground;
+  }
+
+  mozilla::dom::EventTarget* GetChromeEventHandler() const
+  {
+    return mChromeEventHandler;
+  }
+
+  // Outer windows only.
+  virtual void SetChromeEventHandler(mozilla::dom::EventTarget* aChromeEventHandler) = 0;
+
+  mozilla::dom::EventTarget* GetParentTarget()
+  {
+    if (!mParentTarget) {
+      UpdateParentTarget();
+    }
+    return mParentTarget;
+  }
+
+  virtual void MaybeUpdateTouchState() {}
+
+  nsIDocument* GetExtantDoc() const
+  {
+    return mDoc;
+  }
+  nsIURI* GetDocumentURI() const;
+  nsIURI* GetDocBaseURI() const;
+
+  nsIDocument* GetDoc()
+  {
+    if (!mDoc) {
+      MaybeCreateDoc();
+    }
+    return mDoc;
+  }
+
+  virtual bool IsRunningTimeout() = 0;
+
+protected:
+  // Lazily instantiate an about:blank document if necessary, and if
+  // we have what it takes to do so.
+  void MaybeCreateDoc();
+
+public:
+  inline bool IsLoadingOrRunningTimeout() const;
+
+  // Check whether a document is currently loading
+  inline bool IsLoading() const;
+  inline bool IsHandlingResizeEvent() const;
+
+  // Set the window up with an about:blank document with the current subject
+  // principal.
+  // Outer windows only.
+  virtual void SetInitialPrincipalToSubject() = 0;
+
+  virtual PopupControlState PushPopupControlState(PopupControlState aState,
+                                                  bool aForce) const = 0;
+  virtual void PopPopupControlState(PopupControlState state) const = 0;
+  virtual PopupControlState GetPopupControlState() const = 0;
+
+  // Returns an object containing the window's state.  This also suspends
+  // all running timeouts in the window.
+  virtual already_AddRefed<nsISupports> SaveWindowState() = 0;
+
+  // Restore the window state from aState.
+  virtual nsresult RestoreWindowState(nsISupports *aState) = 0;
+
+  // Determine if the window is suspended or frozen.  Outer windows
+  // will forward this call to the inner window for convenience.  If
+  // there is no inner window then the outer window is considered
+  // suspended and frozen by default.
+  virtual bool IsSuspended() const = 0;
+  virtual bool IsFrozen() const = 0;
+
+  // Fire any DOM notification events related to things that happened while
+  // the window was frozen.
+  virtual nsresult FireDelayedDOMEvents() = 0;
+
+  nsPIDOMWindowOuter* GetOuterWindow()
+  {
+    return mIsInnerWindow ? mOuterWindow.get() : AsOuter();
+  }
+
+  bool IsInnerWindow() const
+  {
+    return mIsInnerWindow;
+  }
+
+  bool IsOuterWindow() const
+  {
+    return !IsInnerWindow();
+  }
+
+  // Outer windows only.
+  virtual bool WouldReuseInnerWindow(nsIDocument* aNewDocument) = 0;
+
+  /**
+   * Get the docshell in this window.
+   */
+  nsIDocShell *GetDocShell() const;
+
+  /**
+   * Set the docshell in the window.  Must not be called with a null docshell
+   * (use DetachFromDocShell for that).
+   */
+  virtual void SetDocShell(nsIDocShell *aDocShell) = 0;
+
+  /**
+   * Detach an outer window from its docshell.
+   */
+  virtual void DetachFromDocShell() = 0;
+
+  /**
+   * Set a new document in the window. Calling this method will in
+   * most cases create a new inner window. If this method is called on
+   * an inner window the call will be forewarded to the outer window,
+   * if the inner window is not the current inner window an
+   * NS_ERROR_NOT_AVAILABLE error code will be returned. This may be
+   * called with a pointer to the current document, in that case the
+   * document remains unchanged, but a new inner window will be
+   * created.
+   *
+   * aDocument must not be null.
+   */
+  virtual nsresult SetNewDocument(nsIDocument *aDocument,
+                                  nsISupports *aState,
+                                  bool aForceReuseInnerWindow) = 0;
+
+  /**
+   * Set the opener window.  aOriginalOpener is true if and only if this is the
+   * original opener for the window.  That is, it can only be true at most once
+   * during the life cycle of a window, and then only the first time
+   * SetOpenerWindow is called.  It might never be true, of course, if the
+   * window does not have an opener when it's created.
+   */
+  virtual void SetOpenerWindow(nsPIDOMWindowOuter* aOpener,
+                               bool aOriginalOpener) = 0;
+
+  virtual void EnsureSizeUpToDate() = 0;
+
+  /**
+   * Callback for notifying a window about a modal dialog being
+   * opened/closed with the window as a parent.
+   */
+  virtual void EnterModalState() = 0;
+  virtual void LeaveModalState() = 0;
+
+  // Outer windows only.
+  virtual bool CanClose() = 0;
+  virtual void ForceClose() = 0;
+
+  bool IsModalContentWindow() const
+  {
+    return mIsModalContentWindow;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a paint event listener.
+   */
+  void SetHasPaintEventListeners()
+  {
+    mMayHavePaintEventListener = true;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a paint event listener.
+   */
+  bool HasPaintEventListeners()
+  {
+    return mMayHavePaintEventListener;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a touch event listener.
+   */
+  void SetHasTouchEventListeners()
+  {
+    if (!mMayHaveTouchEventListener) {
+      mMayHaveTouchEventListener = true;
+      MaybeUpdateTouchState();
+    }
+  }
+
+  /**
+   * Moves the top-level window into fullscreen mode if aIsFullScreen is true,
+   * otherwise exits fullscreen.
+   *
+   * Outer windows only.
+   */
+  virtual nsresult SetFullscreenInternal(
+    FullscreenReason aReason, bool aIsFullscreen) = 0;
+
+  /**
+   * This function should be called when the fullscreen state is flipped.
+   * If no widget is involved the fullscreen change, this method is called
+   * by SetFullscreenInternal, otherwise, it is called when the widget
+   * finishes its change to or from fullscreen.
+   *
+   * @param aIsFullscreen indicates whether the widget is in fullscreen.
+   *
+   * Outer windows only.
+   */
+  virtual void FinishFullscreenChange(bool aIsFullscreen) = 0;
+
+  virtual JSObject* GetCachedXBLPrototypeHandler(nsXBLPrototypeHandler* aKey) = 0;
+  virtual void CacheXBLPrototypeHandler(nsXBLPrototypeHandler* aKey,
+                                        JS::Handle<JSObject*> aHandler) = 0;
+
+  /*
+   * Get and set the currently focused element within the document. If
+   * aNeedsFocus is true, then set mNeedsFocus to true to indicate that a
+   * document focus event is needed.
+   *
+   * DO NOT CALL EITHER OF THESE METHODS DIRECTLY. USE THE FOCUS MANAGER
+   * INSTEAD.
+   */
+  nsIContent* GetFocusedNode() const;
+  virtual void SetFocusedNode(nsIContent* aNode,
+                              uint32_t aFocusMethod = 0,
+                              bool aNeedsFocus = false) = 0;
+
+  /**
+   * Retrieves the method that was used to focus the current node.
+   */
+  virtual uint32_t GetFocusMethod() = 0;
+
+  /*
+   * Tells the window that it now has focus or has lost focus, based on the
+   * state of aFocus. If this method returns true, then the document loaded
+   * in the window has never received a focus event and expects to receive
+   * one. If false is returned, the document has received a focus event before
+   * and should only receive one if the window is being focused.
+   *
+   * aFocusMethod may be set to one of the focus method constants in
+   * nsIFocusManager to indicate how focus was set.
+   */
+  virtual bool TakeFocus(bool aFocus, uint32_t aFocusMethod) = 0;
+
+  /**
+   * Indicates that the window may now accept a document focus event. This
+   * should be called once a document has been loaded into the window.
+   */
+  virtual void SetReadyForFocus() = 0;
+
+  /**
+   * Whether the focused content within the window should show a focus ring.
+   */
+  virtual bool ShouldShowFocusRing() = 0;
+
+  /**
+   * Set the keyboard indicator state for accelerators and focus rings.
+   */
+  virtual void SetKeyboardIndicators(UIStateChangeType aShowAccelerators,
+                                     UIStateChangeType aShowFocusRings) = 0;
+
+  /**
+   * Indicates that the page in the window has been hidden. This is used to
+   * reset the focus state.
+   */
+  virtual void PageHidden() = 0;
+
+  /**
+   * Instructs this window to asynchronously dispatch a hashchange event.  This
+   * method must be called on an inner window.
+   */
+  virtual nsresult DispatchAsyncHashchange(nsIURI *aOldURI,
+                                           nsIURI *aNewURI) = 0;
+
+  /**
+   * Instructs this window to synchronously dispatch a popState event.
+   */
+  virtual nsresult DispatchSyncPopState() = 0;
+
+  /**
+   * Tell this window that it should listen for sensor changes of the given
+   * type.
+   *
+   * Inner windows only.
+   */
+  virtual void EnableDeviceSensor(uint32_t aType) = 0;
+
+  /**
+   * Tell this window that it should remove itself from sensor change
+   * notifications.
+   *
+   * Inner windows only.
+   */
+  virtual void DisableDeviceSensor(uint32_t aType) = 0;
+
+#if defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GONK)
+  virtual void EnableOrientationChangeListener() = 0;
+  virtual void DisableOrientationChangeListener() = 0;
+#endif
+
+  virtual void EnableTimeChangeNotifications() = 0;
+  virtual void DisableTimeChangeNotifications() = 0;
+
+#ifdef MOZ_B2G
+  /**
+   * Tell the window that it should start to listen to the network event of the
+   * given aType.
+   *
+   * Inner windows only.
+   */
+  virtual void EnableNetworkEvent(mozilla::EventMessage aEventMessage) = 0;
+
+  /**
+   * Tell the window that it should stop to listen to the network event of the
+   * given aType.
+   *
+   * Inner windows only.
+   */
+  virtual void DisableNetworkEvent(mozilla::EventMessage aEventMessage) = 0;
+#endif // MOZ_B2G
+
+  /**
+   * Tell this window that there is an observer for gamepad input
+   *
+   * Inner windows only.
+   */
+  virtual void SetHasGamepadEventListener(bool aHasGamepad = true) = 0;
+
+  /**
+   * Set a arguments for this window. This will be set on the window
+   * right away (if there's an existing document) and it will also be
+   * installed on the window when the next document is loaded.
+   *
+   * This function serves double-duty for passing both |arguments| and
+   * |dialogArguments| back from nsWindowWatcher to nsGlobalWindow. For the
+   * latter, the array is an array of length 0 whose only element is a
+   * DialogArgumentsHolder representing the JS value passed to showModalDialog.
+   *
+   * Outer windows only.
+   */
+  virtual nsresult SetArguments(nsIArray *aArguments) = 0;
+
+  /**
+   * NOTE! This function *will* be called on multiple threads so the
+   * implementation must not do any AddRef/Release or other actions that will
+   * mutate internal state.
+   */
+  virtual uint32_t GetSerial() = 0;
+
+  /**
+   * Return the window id of this window
+   */
+  uint64_t WindowID() const { return mWindowID; }
+
+  /**
+   * Dispatch a custom event with name aEventName targeted at this window.
+   * Returns whether the default action should be performed.
+   *
+   * Outer windows only.
+   */
+  virtual bool DispatchCustomEvent(const nsAString& aEventName) = 0;
+
+  /**
+   * Like nsIDOMWindow::Open, except that we don't navigate to the given URL.
+   *
+   * Outer windows only.
+   */
+  virtual nsresult
+  OpenNoNavigate(const nsAString& aUrl, const nsAString& aName,
+                 const nsAString& aOptions, nsPIDOMWindowOuter **_retval) = 0;
+
+  /**
+   * Fire a popup blocked event on the document.
+   */
+  virtual void
+  FirePopupBlockedEvent(nsIDocument* aDoc,
+                        nsIURI* aPopupURI,
+                        const nsAString& aPopupWindowName,
+                        const nsAString& aPopupWindowFeatures) = 0;
+
+  // WebIDL-ish APIs
+  void MarkUncollectableForCCGeneration(uint32_t aGeneration)
+  {
+    mMarkedCCGeneration = aGeneration;
+  }
+
+  uint32_t GetMarkedCCGeneration()
+  {
+    return mMarkedCCGeneration;
+  }
+
+  virtual nsIDOMScreen* GetScreen() = 0;
+  virtual nsIDOMNavigator* GetNavigator() = 0;
+  virtual nsIDOMLocation* GetLocation() = 0;
+  virtual nsresult GetPrompter(nsIPrompt** aPrompt) = 0;
+  virtual nsresult GetControllers(nsIControllers** aControllers) = 0;
+  virtual already_AddRefed<nsISelection> GetSelection() = 0;
+  virtual already_AddRefed<nsPIDOMWindowOuter> GetOpener() = 0;
+  virtual already_AddRefed<nsIDOMWindowCollection> GetFrames() = 0;
+  // aLoadInfo will be passed on through to the windowwatcher.
+  // aForceNoOpener will act just like a "noopener" feature in aOptions except
+  //                will not affect any other window features.
+  virtual nsresult Open(const nsAString& aUrl, const nsAString& aName,
+                        const nsAString& aOptions,
+                        nsIDocShellLoadInfo* aLoadInfo,
+                        bool aForceNoOpener,
+                        nsPIDOMWindowOuter **_retval) = 0;
+  virtual nsresult OpenDialog(const nsAString& aUrl, const nsAString& aName,
+                              const nsAString& aOptions,
+                              nsISupports* aExtraArgument,
+                              nsPIDOMWindowOuter** _retval) = 0;
+
+  virtual nsresult GetInnerWidth(int32_t* aWidth) = 0;
+  virtual nsresult GetInnerHeight(int32_t* aHeight) = 0;
+  virtual already_AddRefed<nsICSSDeclaration>
+    GetComputedStyle(mozilla::dom::Element& aElt, const nsAString& aPseudoElt,
+                     mozilla::ErrorResult& aError) = 0;
+  virtual already_AddRefed<nsIDOMElement> GetFrameElement() = 0;
+  virtual already_AddRefed<nsIDOMOfflineResourceList> GetApplicationCache() = 0;
+  virtual bool Closed() = 0;
+  virtual bool GetFullScreen() = 0;
+  virtual nsresult SetFullScreen(bool aFullScreen) = 0;
+
+  virtual nsresult Focus() = 0;
+  virtual nsresult Close() = 0;
+
+  virtual nsresult MoveBy(int32_t aXDif, int32_t aYDif) = 0;
+  virtual nsresult UpdateCommands(const nsAString& anAction, nsISelection* aSel, int16_t aReason) = 0;
+
+  mozilla::dom::TabGroup* TabGroup();
+
+  mozilla::dom::DocGroup* GetDocGroup();
+
+  virtual mozilla::ThrottledEventQueue* GetThrottledEventQueue() = 0;
+
+protected:
+  // The nsPIDOMWindow constructor. The aOuterWindow argument should
+  // be null if and only if the created window itself is an outer
+  // window. In all other cases aOuterWindow should be the outer
+  // window for the inner window that is being created.
+  explicit nsPIDOMWindow<T>(nsPIDOMWindowOuter *aOuterWindow);
+
+  ~nsPIDOMWindow<T>();
+
+  void SetChromeEventHandlerInternal(mozilla::dom::EventTarget* aChromeEventHandler) {
+    mChromeEventHandler = aChromeEventHandler;
+    // mParentTarget will be set when the next event is dispatched.
+    mParentTarget = nullptr;
+  }
+
+  virtual void UpdateParentTarget() = 0;
+
+  // These two variables are special in that they're set to the same
+  // value on both the outer window and the current inner window. Make
+  // sure you keep them in sync!
+  nsCOMPtr<mozilla::dom::EventTarget> mChromeEventHandler; // strong
+  nsCOMPtr<nsIDocument> mDoc; // strong
+  // Cache the URI when mDoc is cleared.
+  nsCOMPtr<nsIURI> mDocumentURI; // strong
+  nsCOMPtr<nsIURI> mDocBaseURI; // strong
+
+  nsCOMPtr<mozilla::dom::EventTarget> mParentTarget; // strong
+
+  // These members are only used on outer windows.
+  nsCOMPtr<mozilla::dom::Element> mFrameElement;
+  // This reference is used by the subclass nsGlobalWindow, and cleared in it's
+  // DetachFromDocShell() method. This method is called by nsDocShell::Destroy(),
+  // which is called before the nsDocShell is destroyed.
+  nsIDocShell* MOZ_NON_OWNING_REF mDocShell;  // Weak Reference
+
+  // mPerformance is only used on inner windows.
+  RefPtr<mozilla::dom::Performance> mPerformance;
+
+  typedef nsRefPtrHashtable<nsStringHashKey,
+                            mozilla::dom::ServiceWorkerRegistration>
+          ServiceWorkerRegistrationTable;
+  ServiceWorkerRegistrationTable mServiceWorkerRegistrationTable;
+
+  uint32_t               mModalStateDepth;
+
+  // These variables are only used on inner windows.
+  mozilla::dom::Timeout *mRunningTimeout;
+
+  uint32_t               mMutationBits;
+
+  bool                   mIsDocumentLoaded;
+  bool                   mIsHandlingResizeEvent;
+  bool                   mIsInnerWindow;
+  bool                   mMayHavePaintEventListener;
+  bool                   mMayHaveTouchEventListener;
+  bool                   mMayHaveMouseEnterLeaveEventListener;
+  bool                   mMayHavePointerEnterLeaveEventListener;
+
+  // Used to detect whether we have called FreeInnerObjects() (e.g. to ensure
+  // that a call to ResumeTimeouts() after FreeInnerObjects() does nothing).
+  // This member is only used by inner windows.
+  bool                   mInnerObjectsFreed;
+
+
+  // This variable is used on both inner and outer windows (and they
+  // should match).
+  bool                   mIsModalContentWindow;
+
+  // Tracks activation state that's used for :-moz-window-inactive.
+  // Only used on outer windows.
+  bool                   mIsActive;
+
+  // Tracks whether our docshell is active.  If it is, mIsBackground
+  // is false.  Too bad we have so many different concepts of
+  // "active".  Only used on outer windows.
+  bool                   mIsBackground;
+
+  /**
+   * The suspended types can be "disposable" or "permanent". This varable only
+   * stores the value about permanent suspend.
+   * - disposable
+   * To pause all playing media in that window, but doesn't affect the media
+   * which starts after that.
+   *
+   * - permanent
+   * To pause all media in that window, and also affect the media which starts
+   * after that.
+   */
+  SuspendTypes       mMediaSuspend;
+
+  bool                   mAudioMuted;
+  float                  mAudioVolume;
+
+  bool                   mAudioCaptured;
+
+  // current desktop mode flag.
+  bool                   mDesktopModeViewport;
+
+  bool                   mIsRootOuterWindow;
+
+  // And these are the references between inner and outer windows.
+  nsPIDOMWindowInner* MOZ_NON_OWNING_REF mInnerWindow;
+  nsCOMPtr<nsPIDOMWindowOuter> mOuterWindow;
+
+  // the element within the document that is currently focused when this
+  // window is active
+  nsCOMPtr<nsIContent> mFocusedNode;
+
+  // The AudioContexts created for the current document, if any.
+  nsTArray<mozilla::dom::AudioContext*> mAudioContexts; // Weak
+
+  // This is present both on outer and inner windows.
+  RefPtr<mozilla::dom::TabGroup> mTabGroup;
+
+  // A unique (as long as our 64-bit counter doesn't roll over) id for
+  // this window.
+  uint64_t mWindowID;
+
+  // This is only used by the inner window. Set to true once we've sent
+  // the (chrome|content)-document-global-created notification.
+  bool mHasNotifiedGlobalCreated;
+
+  uint32_t mMarkedCCGeneration;
+
+  // Let the service workers plumbing know that some feature are enabled while
+  // testing.
+  bool mServiceWorkersTestingEnabled;
+};
+
+#define NS_PIDOMWINDOWINNER_IID \
+{ 0x775dabc9, 0x8f43, 0x4277, \
+  { 0x9a, 0xdb, 0xf1, 0x99, 0x0d, 0x77, 0xcf, 0xfb } }
+
+#define NS_PIDOMWINDOWOUTER_IID \
+  { 0x769693d4, 0xb009, 0x4fe2, \
+  { 0xaf, 0x18, 0x7d, 0xc8, 0xdf, 0x74, 0x96, 0xdf } }
+
+// NB: It's very very important that these two classes have identical vtables
+// and memory layout!
+class nsPIDOMWindowInner : public nsPIDOMWindow<mozIDOMWindow>
+{
+  friend nsGlobalWindow;
+
+public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_PIDOMWINDOWINNER_IID)
+
+  static nsPIDOMWindowInner* From(mozIDOMWindow* aFrom) {
+    return static_cast<nsPIDOMWindowInner*>(aFrom);
+  }
+
+  // Returns true if this object has an outer window and it is the current inner
+  // window of that outer.
+  inline bool IsCurrentInnerWindow() const;
+
+  // Returns true if the document of this window is the active document.  This
+  // is not identical to IsCurrentInnerWindow() because document.open() will
+  // keep the same document active but create a new window.
+  inline bool HasActiveDocument();
+
+  bool AddAudioContext(mozilla::dom::AudioContext* aAudioContext);
+  void RemoveAudioContext(mozilla::dom::AudioContext* aAudioContext);
+  void MuteAudioContexts();
+  void UnmuteAudioContexts();
+
+  bool GetAudioCaptured() const;
+  nsresult SetAudioCapture(bool aCapture);
+
+  already_AddRefed<mozilla::dom::ServiceWorkerRegistration>
+    GetServiceWorkerRegistration(const nsAString& aScope);
+  void InvalidateServiceWorkerRegistration(const nsAString& aScope);
+
+  mozilla::dom::Performance* GetPerformance();
+
+  bool HasMutationListeners(uint32_t aMutationEventType) const
+  {
+    if (!mOuterWindow) {
+      NS_ERROR("HasMutationListeners() called on orphan inner window!");
+
+      return false;
+    }
+
+    return (mMutationBits & aMutationEventType) != 0;
+  }
+
+  void SetMutationListeners(uint32_t aType)
+  {
+    if (!mOuterWindow) {
+      NS_ERROR("HasMutationListeners() called on orphan inner window!");
+
+      return;
+    }
+
+    mMutationBits |= aType;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a mouseenter/leave event listener.
+   */
+  bool HasMouseEnterLeaveEventListeners()
+  {
+    return mMayHaveMouseEnterLeaveEventListener;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a mouseenter/leave event listener.
+   */
+  void SetHasMouseEnterLeaveEventListeners()
+  {
+    mMayHaveMouseEnterLeaveEventListener = true;
+  }
+
+  /**
+   * Call this to check whether some node (this window, its document,
+   * or content in that document) has a Pointerenter/leave event listener.
+   */
+  bool HasPointerEnterLeaveEventListeners()
+  {
+    return mMayHavePointerEnterLeaveEventListener;
+  }
+
+  /**
+   * Call this to indicate that some node (this window, its document,
+   * or content in that document) has a Pointerenter/leave event listener.
+   */
+  void SetHasPointerEnterLeaveEventListeners()
+  {
+    mMayHavePointerEnterLeaveEventListener = true;
+  }
+
+  /**
+   * Check whether this has had inner objects freed.
+   */
+  bool InnerObjectsFreed() const
+  {
+    return mInnerObjectsFreed;
+  }
+
+  /**
+   * Check whether this window is a secure context.
+   */
+  bool IsSecureContext() const;
+  bool IsSecureContextIfOpenerIgnored() const;
+
+  // Calling suspend should prevent any asynchronous tasks from
+  // executing javascript for this window.  This means setTimeout,
+  // requestAnimationFrame, and events should not be fired. Suspending
+  // a window also suspends its children and workers.  Workers may
+  // continue to perform computations in the background.  A window
+  // can have Suspend() called multiple times and will only resume after
+  // a matching number of Resume() calls.
+  void Suspend();
+  void Resume();
+
+  // Calling Freeze() on a window will automatically Suspend() it.  In
+  // addition, the window and its children are further treated as no longer
+  // suitable for interaction with the user.  For example, it may be marked
+  // non-visible, cannot be focused, etc.  All worker threads are also frozen
+  // bringing them to a complete stop.  A window can have Freeze() called
+  // multiple times and will only thaw after a matching number of Thaw()
+  // calls.
+  void Freeze();
+  void Thaw();
+
+  // Apply the parent window's suspend, freeze, and modal state to the current
+  // window.
+  void SyncStateFromParentWindow();
+
+protected:
+  void CreatePerformanceObjectIfNeeded();
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsPIDOMWindowInner, NS_PIDOMWINDOWINNER_IID)
+
+// NB: It's very very important that these two classes have identical vtables
+// and memory layout!
+class nsPIDOMWindowOuter : public nsPIDOMWindow<mozIDOMWindowProxy>
+{
+protected:
+  void RefreshMediaElementsVolume();
+  void RefreshMediaElementsSuspend(SuspendTypes aSuspend);
+  bool IsDisposableSuspend(SuspendTypes aSuspend) const;
+
+public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_PIDOMWINDOWOUTER_IID)
+
+  static nsPIDOMWindowOuter* From(mozIDOMWindowProxy* aFrom) {
+    return static_cast<nsPIDOMWindowOuter*>(aFrom);
+  }
+
+  // Given an inner window, return its outer if the inner is the current inner.
+  // Otherwise (argument null or not an inner or not current) return null.
+  static nsPIDOMWindowOuter* GetFromCurrentInner(nsPIDOMWindowInner* aInner);
+
+  nsPIDOMWindowInner* GetCurrentInnerWindow() const
+  {
+    return mInnerWindow;
+  }
+
+  nsPIDOMWindowInner* EnsureInnerWindow()
+  {
+    MOZ_ASSERT(IsOuterWindow());
+    // GetDoc forces inner window creation if there isn't one already
+    GetDoc();
+    return GetCurrentInnerWindow();
+  }
+
+  /**
+   * Set initial keyboard indicator state for accelerators and focus rings.
+   */
+  void SetInitialKeyboardIndicators(UIStateChangeType aShowAccelerators,
+                                    UIStateChangeType aShowFocusRings);
+
+  // Internal getter/setter for the frame element, this version of the
+  // getter crosses chrome boundaries whereas the public scriptable
+  // one doesn't for security reasons.
+  mozilla::dom::Element* GetFrameElementInternal() const;
+  void SetFrameElementInternal(mozilla::dom::Element* aFrameElement);
+
+  bool IsActive()
+  {
+    return mIsActive;
+  }
+
+  void SetDesktopModeViewport(bool aDesktopModeViewport)
+  {
+    mDesktopModeViewport = aDesktopModeViewport;
+  }
+  bool IsDesktopModeViewport() const
+  {
+    return mDesktopModeViewport;
+  }
+  bool IsBackground()
+  {
+    return mIsBackground;
+  }
+
+  // Audio API
+  SuspendTypes GetMediaSuspend() const;
+  void SetMediaSuspend(SuspendTypes aSuspend);
+
+  bool GetAudioMuted() const;
+  void SetAudioMuted(bool aMuted);
+
+  float GetAudioVolume() const;
+  nsresult SetAudioVolume(float aVolume);
+
+  void SetServiceWorkersTestingEnabled(bool aEnabled);
+  bool GetServiceWorkersTestingEnabled();
+
+  float GetDevicePixelRatio(mozilla::dom::CallerType aCallerType);
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsPIDOMWindowOuter, NS_PIDOMWINDOWOUTER_IID)
+
+#include "nsPIDOMWindowInlines.h"
+
+#ifdef MOZILLA_INTERNAL_API
+PopupControlState
+PushPopupControlState(PopupControlState aState, bool aForce);
+
+void
+PopPopupControlState(PopupControlState aState);
+
+#define NS_AUTO_POPUP_STATE_PUSHER nsAutoPopupStatePusherInternal
+#else
+#define NS_AUTO_POPUP_STATE_PUSHER nsAutoPopupStatePusherExternal
+#endif
+
+// Helper class that helps with pushing and popping popup control
+// state. Note that this class looks different from within code that's
+// part of the layout library than it does in code outside the layout
+// library.  We give the two object layouts different names so the symbols
+// don't conflict, but code should always use the name
+// |nsAutoPopupStatePusher|.
+class NS_AUTO_POPUP_STATE_PUSHER
+{
+public:
+#ifdef MOZILLA_INTERNAL_API
+  explicit NS_AUTO_POPUP_STATE_PUSHER(PopupControlState aState, bool aForce = false)
+    : mOldState(::PushPopupControlState(aState, aForce))
+  {
+  }
+
+  ~NS_AUTO_POPUP_STATE_PUSHER()
+  {
+    PopPopupControlState(mOldState);
+  }
+#else
+  NS_AUTO_POPUP_STATE_PUSHER(nsPIDOMWindowOuter *aWindow, PopupControlState aState)
+    : mWindow(aWindow), mOldState(openAbused)
+  {
+    if (aWindow) {
+      mOldState = aWindow->PushPopupControlState(aState, false);
+    }
+  }
+
+  ~NS_AUTO_POPUP_STATE_PUSHER()
+  {
+    if (mWindow) {
+      mWindow->PopPopupControlState(mOldState);
+    }
+  }
+#endif
+
+protected:
+#ifndef MOZILLA_INTERNAL_API
+  nsCOMPtr<nsPIDOMWindowOuter> mWindow;
+#endif
+  PopupControlState mOldState;
+
+private:
+  // Hide so that this class can only be stack-allocated
+  static void* operator new(size_t /*size*/) CPP_THROW_NEW { return nullptr; }
+  static void operator delete(void* /*memory*/) {}
+};
+
+#define nsAutoPopupStatePusher NS_AUTO_POPUP_STATE_PUSHER
+
+#endif // nsPIDOMWindow_h__