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import changes from win7-7/UXP:

Browse source 
bug1347737, bug1365982, bug1367206
This commit is contained in:
Roy Tam 2019-06-29 06:38:51 +08:00
commit 0f035317a3
96 changed files with 1525 additions and 1329 deletions
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13
layout/base/RestyleManagerBase.h
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@ -72,6 +72,11 @@ public:
// WillDestroyFrameTree hasn't been called yet.
void NotifyDestroyingFrame(nsIFrame* aFrame) {
mOverflowChangedTracker.RemoveFrame(aFrame);
// If ProcessRestyledFrames is tracking frames which have been
// destroyed (to avoid re-visiting them), add this one to its set.
if (mDestroyedFrames) {
mDestroyedFrames->PutEntry(aFrame);
}
}
// Note: It's the caller's responsibility to make sure to wrap a
@ -127,6 +132,12 @@ private:
nsPresContext* mPresContext; // weak, can be null after Disconnect().
uint32_t mRestyleGeneration;
uint32_t mHoverGeneration;
// Used to keep track of frames that have been destroyed during
// ProcessRestyledFrames, so we don't try to touch them again even if
// they're referenced again later in the changelist.
mozilla::UniquePtr<nsTHashtable<nsPtrHashKey<const nsIFrame>>> mDestroyedFrames;
// True if we're already waiting for a refresh notification.
bool mObservingRefreshDriver;
@ -146,7 +157,7 @@ protected:
GetNearestAncestorFrame(nsIContent* aContent);
static nsIFrame*
GetNextBlockInInlineSibling(FramePropertyTable* aPropTable, nsIFrame* aFrame);
GetNextBlockInInlineSibling(nsIFrame* aFrame);
/**
* Get the next continuation or similar ib-split sibling (assuming