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Bug 847223. Part 9. Try to avoid asking for a decode of an image whose network request finishes before painting is unsuppressed. r=joe,mats

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This commit is contained in:
Timothy Nikkel 2013-09-14 19:05:05 -05:00
parent ed1a166eec
commit 8243dc1741
1 changed files with 10 additions and 2 deletions
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12
content/base/src/nsImageLoadingContent.cpp
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@ -237,8 +237,16 @@ nsImageLoadingContent::OnStopRequest(imgIRequest* aRequest,
if (shell && shell->IsVisible() &&
(!shell->DidInitialize() || shell->IsPaintingSuppressed())) {
if (NS_SUCCEEDED(mCurrentRequest->StartDecoding())) {
startedDecoding = true;
// If we've gotten a frame and that frame has called FrameCreate and that
// frame has been reflowed then we know that it checked it's own visibility
// so we can trust our visible count and we don't start decode if we are not
// visible.
nsIFrame* f = GetOurPrimaryFrame();
if (!mFrameCreateCalled || !f ||
(f->GetStateBits() & NS_FRAME_FIRST_REFLOW) || mVisibleCount > 0) {
if (NS_SUCCEEDED(mCurrentRequest->StartDecoding())) {
startedDecoding = true;
}
}
}