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Bug 1296516 - Cleanup a bit of code in layout/base

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* Tidy RestyleManager::ContentStateChanged
* Convert UndisplayedMap to a typed hashtable
* Cleanup infallible or unchecked nsCSSFrameConstructor methods

Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 05:04:10 -04:00 • committed by Roy Tam
commit e1195a86e0
13 changed files with 358 additions and 459 deletions
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27
layout/base/nsFrameManager.h
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@ -33,32 +33,19 @@ namespace mozilla {
* Node in a linked list, containing the style for an element that
* does not have a frame but whose parent does have a frame.
*/
struct UndisplayedNode {
struct UndisplayedNode : public LinkedListElement<UndisplayedNode>
{
UndisplayedNode(nsIContent* aContent, nsStyleContext* aStyle)
: mContent(aContent),
mStyle(aStyle),
mNext(nullptr)
: mContent(aContent)
, mStyle(aStyle)
{
MOZ_COUNT_CTOR(mozilla::UndisplayedNode);
}
~UndisplayedNode()
{
MOZ_COUNT_DTOR(mozilla::UndisplayedNode);
~UndisplayedNode() { MOZ_COUNT_DTOR(mozilla::UndisplayedNode); }
// Delete mNext iteratively to avoid blowing up the stack (bug 460461).
UndisplayedNode* cur = mNext;
while (cur) {
UndisplayedNode* next = cur->mNext;
cur->mNext = nullptr;
delete cur;
cur = next;
}
}
nsCOMPtr<nsIContent> mContent;
RefPtr<nsStyleContext> mStyle;
UndisplayedNode* mNext;
nsCOMPtr<nsIContent> mContent;
RefPtr<nsStyleContext> mStyle;
};
} // namespace mozilla