Bug 1682030 - Remove NPAPI windowed plugin layer support r=bas

Removes stale windowed NPAPI plugin layers support as part of removing all NPAPI support.

Differential Revision: https://phabricator.services.mozilla.com/D107153

gfx/layers/client/ClientLayerManager.cpp

@@ -387,13 +387,6 @@ bool ClientLayerManager::EndTransactionInternal(
   return !mTransactionIncomplete;
 }
 
-void ClientLayerManager::StorePluginWidgetConfigurations(
-    const nsTArray<nsIWidget::Configuration>& aConfigurations) {
-  if (mForwarder) {
-    mForwarder->StorePluginWidgetConfigurations(aConfigurations);
-  }
-}
-
 void ClientLayerManager::EndTransaction(DrawPaintedLayerCallback aCallback,
                                         void* aCallbackData,
                                         EndTransactionFlags aFlags) {

gfx/layers/client/ClientLayerManager.h

@@ -145,15 +145,6 @@ class ClientLayerManager final : public LayerManager,
 
   void SetFocusTarget(const FocusTarget& aFocusTarget) override;
 
-  /**
-   * Pass through call to the forwarder for nsPresContext's
-   * CollectPluginGeometryUpdates. Passes widget configuration information
-   * to the compositor for transmission to the chrome process. This
-   * configuration gets set when the window paints.
-   */
-  void StorePluginWidgetConfigurations(
-      const nsTArray<nsIWidget::Configuration>& aConfigurations) override;
-
   // Drop cached resources and ask our shadow manager to do the same,
   // if we have one.
   void ClearCachedResources(Layer* aSubtree = nullptr) override;

gfx/layers/ipc/CompositorBridgeParent.cpp

@@ -814,7 +814,7 @@ void CompositorBridgeParent::NotifyShadowTreeTransaction(
     bool aScheduleComposite, uint32_t aPaintSequenceNumber,
     bool aIsRepeatTransaction, bool aHitTestUpdate) {
   if (!aIsRepeatTransaction && mLayerManager && mLayerManager->GetRoot()) {
-    AutoResolveRefLayers resolve(mCompositionManager, this, nullptr);
+    AutoResolveRefLayers resolve(mCompositionManager, this);
 
     if (mApzUpdater) {
       mApzUpdater->UpdateFocusState(mRootLayerTreeID, aId, aFocusTarget);

gfx/layers/ipc/LayerTransactionParent.h

@@ -36,7 +36,6 @@ class LayerTransactionParent final : public PLayerTransactionParent,
                                      public mozilla::ipc::IShmemAllocator {
   typedef nsTArray<Edit> EditArray;
   typedef nsTArray<OpDestroy> OpDestroyArray;
-  typedef nsTArray<PluginWindowData> PluginsArray;
 
   friend class PLayerTransactionParent;
 

gfx/layers/ipc/LayersMessages.ipdlh

@@ -309,14 +309,6 @@ struct LayerAttributes {
   SpecificLayerAttributes specific;
 };
 
-// See nsIWidget Configurations
-[Comparable] struct PluginWindowData {
-  uintptr_t windowId;
-  LayoutDeviceIntRect[] clip;
-  LayoutDeviceIntRect bounds;
-  bool visible;
-};
-
 struct OpSetSimpleLayerAttributes {
   LayerHandle layer;
   SimpleLayerAttributes attrs;
@@ -543,7 +535,6 @@ struct TransactionInfo
   uint64_t fwdTransactionId;
   TransactionId id;
   TargetConfig targetConfig;
-  PluginWindowData[] plugins;
   bool isFirstPaint;
   FocusTarget focusTarget;
   bool scheduleComposite;

gfx/layers/ipc/ShadowLayers.cpp

@@ -531,19 +531,6 @@ bool ShadowLayerForwarder::InWorkerThread() {
   return GetTextureForwarder()->GetThread()->IsOnCurrentThread();
 }
 
-void ShadowLayerForwarder::StorePluginWidgetConfigurations(
-    const nsTArray<nsIWidget::Configuration>& aConfigurations) {
-  // Cache new plugin widget configs here until we call update, at which
-  // point this data will get shipped over to chrome.
-  mPluginWindowData.Clear();
-  for (uint32_t idx = 0; idx < aConfigurations.Length(); idx++) {
-    const nsIWidget::Configuration& configuration = aConfigurations[idx];
-    mPluginWindowData.AppendElement(
-        PluginWindowData(configuration.mWindowID, configuration.mClipRegion,
-                         configuration.mBounds, configuration.mVisible));
-  }
-}
-
 void ShadowLayerForwarder::SendPaintTime(TransactionId aId,
                                          TimeDuration aPaintTime) {
   if (!IPCOpen() || !mShadowManager->SendPaintTime(aId, aPaintTime)) {
@@ -684,7 +671,6 @@ bool ShadowLayerForwarder::EndTransaction(
   info.toDestroy() = mTxn->mDestroyedActors.Clone();
   info.fwdTransactionId() = GetFwdTransactionId();
   info.id() = aId;
-  info.plugins() = mPluginWindowData.Clone();
   info.isFirstPaint() = mIsFirstPaint;
   info.focusTarget() = mFocusTarget;
   info.scheduleComposite() = aScheduleComposite;

gfx/layers/ipc/ShadowLayers.h

@@ -265,14 +265,6 @@ class ShadowLayerForwarder final : public LayersIPCActor,
    */
   void SetShadowManager(PLayerTransactionChild* aShadowManager);
 
-  /**
-   * Layout calls here to cache current plugin widget configuration
-   * data. We ship this across with the rest of the layer updates when
-   * we update. Chrome handles applying these changes.
-   */
-  void StorePluginWidgetConfigurations(
-      const nsTArray<nsIWidget::Configuration>& aConfigurations);
-
   void StopReceiveAsyncParentMessge();
 
   void ClearCachedResources();
@@ -421,7 +413,6 @@ class ShadowLayerForwarder final : public LayersIPCActor,
   DiagnosticTypes mDiagnosticTypes;
   bool mIsFirstPaint;
   FocusTarget mFocusTarget;
-  nsTArray<PluginWindowData> mPluginWindowData;
   UniquePtr<ActiveResourceTracker> mActiveResourceTracker;
   uint64_t mNextLayerHandle;
   nsTHashMap<nsUint64HashKey, CompositableClient*> mCompositables;