Remove VR hardware support.

This resolves #881

dom/base/Element.cpp

@@ -145,7 +145,6 @@
 #include "mozilla/dom/KeyframeEffectBinding.h"
 #include "mozilla/dom/WindowBinding.h"
 #include "mozilla/dom/ElementBinding.h"
-#include "mozilla/dom/VRDisplay.h"
 #include "mozilla/IntegerPrintfMacros.h"
 #include "mozilla/Preferences.h"
 #include "nsComputedDOMStyle.h"

dom/base/Navigator.cpp

@@ -44,7 +44,6 @@
 #include "mozilla/dom/ServiceWorkerContainer.h"
 #include "mozilla/dom/StorageManager.h"
 #include "mozilla/dom/TCPSocket.h"
-#include "mozilla/dom/VRDisplay.h"
 #include "mozilla/dom/workers/RuntimeService.h"
 #include "mozilla/Hal.h"
 #include "nsISiteSpecificUserAgent.h"
@@ -1471,83 +1470,6 @@ Navigator::RequestGamepadServiceTest()
 }
 #endif
 
-already_AddRefed<Promise>
-Navigator::GetVRDisplays(ErrorResult& aRv)
-{
-  if (!mWindow || !mWindow->GetDocShell()) {
-    aRv.Throw(NS_ERROR_UNEXPECTED);
-    return nullptr;
-  }
-
-  nsGlobalWindow* win = nsGlobalWindow::Cast(mWindow);
-  win->NotifyVREventListenerAdded();
-
-  nsCOMPtr<nsIGlobalObject> go = do_QueryInterface(mWindow);
-  RefPtr<Promise> p = Promise::Create(go, aRv);
-  if (aRv.Failed()) {
-    return nullptr;
-  }
-
-  // We pass mWindow's id to RefreshVRDisplays, so NotifyVRDisplaysUpdated will
-  // be called asynchronously, resolving the promises in mVRGetDisplaysPromises.
-  if (!VRDisplay::RefreshVRDisplays(win->WindowID())) {
-    p->MaybeReject(NS_ERROR_FAILURE);
-    return p.forget();
-  }
-
-  mVRGetDisplaysPromises.AppendElement(p);
-  return p.forget();
-}
-
-void
-Navigator::GetActiveVRDisplays(nsTArray<RefPtr<VRDisplay>>& aDisplays) const
-{
-  /**
-   * Get only the active VR displays.
-   * Callers do not wish to VRDisplay::RefreshVRDisplays, as the enumeration may
-   * activate hardware that is not yet intended to be used.
-   */
-  if (!mWindow || !mWindow->GetDocShell()) {
-    return;
-  }
-  nsGlobalWindow* win = nsGlobalWindow::Cast(mWindow);
-  win->NotifyVREventListenerAdded();
-  nsTArray<RefPtr<VRDisplay>> displays;
-  if (win->UpdateVRDisplays(displays)) {
-    for (auto display : displays) {
-      if (display->IsPresenting()) {
-        aDisplays.AppendElement(display);
-      }
-    }
-  }
-}
-
-void
-Navigator::NotifyVRDisplaysUpdated()
-{
-  // Synchronize the VR devices and resolve the promises in
-  // mVRGetDisplaysPromises
-  nsGlobalWindow* win = nsGlobalWindow::Cast(mWindow);
-
-  nsTArray<RefPtr<VRDisplay>> vrDisplays;
-  if (win->UpdateVRDisplays(vrDisplays)) {
-    for (auto p : mVRGetDisplaysPromises) {
-      p->MaybeResolve(vrDisplays);
-    }
-  } else {
-    for (auto p : mVRGetDisplaysPromises) {
-      p->MaybeReject(NS_ERROR_FAILURE);
-    }
-  }
-  mVRGetDisplaysPromises.Clear();
-}
-
-void
-Navigator::NotifyActiveVRDisplaysChanged()
-{
-  NavigatorBinding::ClearCachedActiveVRDisplaysValue(this);
-}
-
 //*****************************************************************************
 //    Navigator::nsIMozNavigatorNetwork
 //*****************************************************************************

dom/base/Navigator.h

@@ -76,7 +76,6 @@ class Connection;
 class PowerManager;
 class Presentation;
 class LegacyMozTCPSocket;
-class VRDisplay;
 class StorageManager;
 
 namespace time {
@@ -204,8 +203,6 @@ public:
   void GetGamepads(nsTArray<RefPtr<Gamepad> >& aGamepads, ErrorResult& aRv);
   GamepadServiceTest* RequestGamepadServiceTest();
 #endif // MOZ_GAMEPAD
-  already_AddRefed<Promise> GetVRDisplays(ErrorResult& aRv);
-  void GetActiveVRDisplays(nsTArray<RefPtr<VRDisplay>>& aDisplays) const;
 #ifdef MOZ_TIME_MANAGER
   time::TimeManager* GetMozTime(ErrorResult& aRv);
 #endif // MOZ_TIME_MANAGER
@@ -269,10 +266,6 @@ private:
   RefPtr<MediaKeySystemAccessManager> mMediaKeySystemAccessManager;
 #endif
 
-public:
-  void NotifyVRDisplaysUpdated();
-  void NotifyActiveVRDisplaysChanged();
-
 private:
   virtual ~Navigator();
 

dom/base/nsGlobalWindow.cpp

@@ -202,9 +202,6 @@
 #include "mozilla/dom/GamepadManager.h"
 #endif
 
-#include "mozilla/dom/VRDisplay.h"
-#include "mozilla/dom/VREventObserver.h"
-
 #include "nsRefreshDriver.h"
 #include "Layers.h"
 
@@ -1532,7 +1529,6 @@ nsGlobalWindow::nsGlobalWindow(nsGlobalWindow *aOuterWindow)
     mShowFocusRingForContent(false),
     mFocusByKeyOccurred(false),
     mHasGamepad(false),
-    mHasVREvents(false),
 #ifdef MOZ_GAMEPAD
     mHasSeenGamepadInput(false),
 #endif
@@ -1967,12 +1963,9 @@ nsGlobalWindow::CleanUp()
   if (IsInnerWindow()) {
     DisableGamepadUpdates();
     mHasGamepad = false;
-    DisableVRUpdates();
-    mHasVREvents = false;
     DisableIdleCallbackRequests();
   } else {
     MOZ_ASSERT(!mHasGamepad);
-    MOZ_ASSERT(!mHasVREvents);
   }
 
   if (mCleanMessageManager) {
@@ -2118,9 +2111,6 @@ nsGlobalWindow::FreeInnerObjects(bool aForDocumentOpen)
   mHasGamepad = false;
   mGamepads.Clear();
 #endif
-  DisableVRUpdates();
-  mHasVREvents = false;
-  mVRDisplays.Clear();
 }
 
 //*****************************************************************************
@@ -2275,7 +2265,6 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INTERNAL(nsGlobalWindow)
 #endif
 
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCacheStorage)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mVRDisplays)
 
   // Traverse stuff from nsPIDOMWindow
   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mChromeEventHandler)
@@ -2352,7 +2341,6 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsGlobalWindow)
 #endif
 
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mCacheStorage)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK(mVRDisplays)
 
   // Unlink stuff from nsPIDOMWindow
   NS_IMPL_CYCLE_COLLECTION_UNLINK(mChromeEventHandler)
@@ -10507,24 +10495,6 @@ nsGlobalWindow::DisableGamepadUpdates()
   }
 }
 
-void
-nsGlobalWindow::EnableVRUpdates()
-{
-  MOZ_ASSERT(IsInnerWindow());
-
-  if (mHasVREvents && !mVREventObserver) {
-    mVREventObserver = new VREventObserver(this);
-  }
-}
-
-void
-nsGlobalWindow::DisableVRUpdates()
-{
-  MOZ_ASSERT(IsInnerWindow());
-
-  mVREventObserver = nullptr;
-}
-
 void
 nsGlobalWindow::SetChromeEventHandler(EventTarget* aChromeEventHandler)
 {
@@ -12210,7 +12180,6 @@ nsGlobalWindow::Suspend()
       ac->RemoveWindowListener(mEnabledSensors[i], this);
   }
   DisableGamepadUpdates();
-  DisableVRUpdates();
 
   mozilla::dom::workers::SuspendWorkersForWindow(AsInner());
 
@@ -12274,7 +12243,6 @@ nsGlobalWindow::Resume()
       ac->AddWindowListener(mEnabledSensors[i], this);
   }
   EnableGamepadUpdates();
-  EnableVRUpdates();
 
   // Resume all of the AudioContexts for this window
   for (uint32_t i = 0; i < mAudioContexts.Length(); ++i) {
@@ -14030,19 +13998,6 @@ nsGlobalWindow::SetHasGamepadEventListener(bool aHasGamepad/* = true*/)
 void
 nsGlobalWindow::EventListenerAdded(nsIAtom* aType)
 {
-  if (aType == nsGkAtoms::onvrdisplayconnect ||
-      aType == nsGkAtoms::onvrdisplaydisconnect ||
-      aType == nsGkAtoms::onvrdisplaypresentchange) {
-    NotifyVREventListenerAdded();
-  }
-}
-
-void
-nsGlobalWindow::NotifyVREventListenerAdded()
-{
-  MOZ_ASSERT(IsInnerWindow());
-  mHasVREvents = true;
-  EnableVRUpdates();
 }
 
 void
@@ -14187,27 +14142,6 @@ nsGlobalWindow::SyncGamepadState()
 }
 #endif // MOZ_GAMEPAD
 
-bool
-nsGlobalWindow::UpdateVRDisplays(nsTArray<RefPtr<mozilla::dom::VRDisplay>>& aDevices)
-{
-  FORWARD_TO_INNER(UpdateVRDisplays, (aDevices), false);
-
-  VRDisplay::UpdateVRDisplays(mVRDisplays, AsInner());
-  aDevices = mVRDisplays;
-  return true;
-}
-
-void
-nsGlobalWindow::NotifyActiveVRDisplaysChanged()
-{
-  MOZ_ASSERT(IsInnerWindow());
-
-  if (mNavigator) {
-    mNavigator->NotifyActiveVRDisplaysChanged();
-  }
-}
-
-
 // nsGlobalChromeWindow implementation
 
 NS_IMPL_CYCLE_COLLECTION_CLASS(nsGlobalChromeWindow)

dom/base/nsGlobalWindow.h

@@ -135,8 +135,6 @@ class SpeechSynthesis;
 class TabGroup;
 class Timeout;
 class U2F;
-class VRDisplay;
-class VREventObserver;
 class WakeLock;
 #if defined(MOZ_WIDGET_ANDROID)
 class WindowOrientationObserver;
@@ -745,18 +743,6 @@ public:
   void EnableGamepadUpdates();
   void DisableGamepadUpdates();
 
-  // Inner windows only.
-  // Enable/disable updates for VR
-  void EnableVRUpdates();
-  void DisableVRUpdates();
-
-  // Update the VR displays for this window
-  bool UpdateVRDisplays(nsTArray<RefPtr<mozilla::dom::VRDisplay>>& aDisplays);
-
-  // Inner windows only.
-  // Called to inform that the set of active VR displays has changed.
-  void NotifyActiveVRDisplaysChanged();
-
 #define EVENT(name_, id_, type_, struct_)                                     \
   mozilla::dom::EventHandlerNonNull* GetOn##name_()                           \
   {                                                                           \
@@ -1832,9 +1818,6 @@ protected:
   // Indicates whether this window wants gamepad input events
   bool                   mHasGamepad : 1;
 
-  // Inner windows only.
-  // Indicates whether this window wants VR events
-  bool                   mHasVREvents : 1;
 #ifdef MOZ_GAMEPAD
   nsCheapSet<nsUint32HashKey> mGamepadIndexSet;
   nsRefPtrHashtable<nsUint32HashKey, mozilla::dom::Gamepad> mGamepads;
@@ -1989,11 +1972,6 @@ protected:
   // This is the CC generation the last time we called CanSkip.
   uint32_t mCanSkipCCGeneration;
 
-  // The VR Displays for this window
-  nsTArray<RefPtr<mozilla::dom::VRDisplay>> mVRDisplays;
-
-  nsAutoPtr<mozilla::dom::VREventObserver> mVREventObserver;
-
   friend class nsDOMScriptableHelper;
   friend class nsDOMWindowUtils;
   friend class mozilla::dom::PostMessageEvent;