4 files changed, 35 insertions, 7 deletions
diff --git a/widget/nsBaseWidget.cpp b/widget/nsBaseWidget.cpp
index 909660f71..c6ec3a406 100644
--- a/widget/nsBaseWidget.cpp
+++ b/widget/nsBaseWidget.cpp
@@ -73,7 +73,6 @@
 #endif
 #include "gfxConfig.h"
 #include "mozilla/layers/CompositorSession.h"
-#include "VRManagerChild.h"
 
 #ifdef DEBUG
 #include "nsIObserver.h"
@@ -366,7 +365,6 @@ nsBaseWidget::OnRenderingDeviceReset()
   // Update the texture factory identifier.
   clm->UpdateTextureFactoryIdentifier(identifier);
   ImageBridgeChild::IdentifyCompositorTextureHost(identifier);
-  gfx::VRManagerChild::IdentifyTextureHost(identifier);
 }
 
 void
@@ -1377,7 +1375,6 @@ void nsBaseWidget::CreateCompositor(int aWidth, int aHeight)
     // compositors used with ImageBridge and VR (and more generally web content).
     if (WidgetTypeSupportsAcceleration()) {
       ImageBridgeChild::IdentifyCompositorTextureHost(textureFactoryIdentifier);
-      gfx::VRManagerChild::IdentifyTextureHost(textureFactoryIdentifier);
     }
   }
 
diff --git a/widget/windows/InProcessWinCompositorWidget.cpp b/widget/windows/InProcessWinCompositorWidget.cpp
index 685eaf5ca..a11790b32 100644
--- a/widget/windows/InProcessWinCompositorWidget.cpp
+++ b/widget/windows/InProcessWinCompositorWidget.cpp
@@ -23,6 +23,31 @@ InProcessWinCompositorWidget::InProcessWinCompositorWidget(const CompositorWidge
   MOZ_ASSERT(mWindow);
 }
 
+void
+InProcessWinCompositorWidget::OnDestroyWindow()
+{
+  EnterPresentLock();
+  WinCompositorWidget::OnDestroyWindow();
+  LeavePresentLock();
+}
+
+void
+InProcessWinCompositorWidget::UpdateTransparency(nsTransparencyMode aMode)
+{
+  EnterPresentLock();
+  WinCompositorWidget::UpdateTransparency(aMode);
+  LeavePresentLock();
+}
+
+void
+InProcessWinCompositorWidget::ClearTransparentWindow()
+{
+  EnterPresentLock();
+  WinCompositorWidget::ClearTransparentWindow();
+  LeavePresentLock();
+}
+
+
 nsIWidget*
 InProcessWinCompositorWidget::RealWidget()
 {
diff --git a/widget/windows/InProcessWinCompositorWidget.h b/widget/windows/InProcessWinCompositorWidget.h
index 2ce6ba0be..afe5a7f53 100644
--- a/widget/windows/InProcessWinCompositorWidget.h
+++ b/widget/windows/InProcessWinCompositorWidget.h
@@ -22,6 +22,10 @@ class InProcessWinCompositorWidget final : public WinCompositorWidget
 public:
   InProcessWinCompositorWidget(const CompositorWidgetInitData& aInitData, nsWindow* aWindow);
 
+  void OnDestroyWindow() override;
+  void UpdateTransparency(nsTransparencyMode aMode) override;
+  void ClearTransparentWindow() override;
+
   void ObserveVsync(VsyncObserver* aObserver) override;
   nsIWidget* RealWidget() override;
 
diff --git a/widget/windows/TSFTextStore.cpp b/widget/windows/TSFTextStore.cpp
index 7224126b8..c80de831c 100644
--- a/widget/windows/TSFTextStore.cpp
+++ b/widget/windows/TSFTextStore.cpp
@@ -4247,14 +4247,14 @@ TSFTextStore::InsertTextAtSelectionInternal(const nsAString& aInsertStr,
   TS_SELECTION_ACP oldSelection = contentForTSF.Selection().ACP();
   if (!mComposition.IsComposing()) {
     // Use a temporary composition to contain the text
-    PendingAction* compositionStart = mPendingActions.AppendElement();
+    PendingAction* compositionStart = mPendingActions.AppendElements(2);
+    PendingAction* compositionEnd = compositionStart + 1;
     compositionStart->mType = PendingAction::COMPOSITION_START;
     compositionStart->mSelectionStart = oldSelection.acpStart;
     compositionStart->mSelectionLength =
       oldSelection.acpEnd - oldSelection.acpStart;
     compositionStart->mAdjustSelection = false;
 
-    PendingAction* compositionEnd = mPendingActions.AppendElement();
     compositionEnd->mType = PendingAction::COMPOSITION_END;
     compositionEnd->mData = aInsertStr;
 
@@ -4455,10 +4455,12 @@ TSFTextStore::RecordCompositionEndAction()
       }
       // When only setting selection is necessary, we should append it.
       if (pendingAction.mAdjustSelection) {
+        LONG selectionStart = pendingAction.mSelectionStart;
+        LONG selectionLength = pendingAction.mSelectionLength;
         PendingAction* setSelection = mPendingActions.AppendElement();
         setSelection->mType = PendingAction::SET_SELECTION;
-        setSelection->mSelectionStart = pendingAction.mSelectionStart;
-        setSelection->mSelectionLength = pendingAction.mSelectionLength;
+        setSelection->mSelectionStart = selectionStart;
+        setSelection->mSelectionLength = selectionLength;
         setSelection->mSelectionReversed = false;
       }
       // Remove the redundant pending composition.