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<body><span class="vcard"><a class="email" href="mailto:simon.fraser@apple.com" title="Simon Fraser (smfr) <simon.fraser@apple.com>"> <span class="fn">Simon Fraser (smfr)</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - When the browser window is activated or deactivated, images can flash"
href="https://bugs.webkit.org/show_bug.cgi?id=169943">bug 169943</a>
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<th>What</th>
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<th>Added</th>
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<td style="text-align:right;">CC</td>
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<td>akling@apple.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - When the browser window is activated or deactivated, images can flash"
href="https://bugs.webkit.org/show_bug.cgi?id=169943#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - When the browser window is activated or deactivated, images can flash"
href="https://bugs.webkit.org/show_bug.cgi?id=169943">bug 169943</a>
from <span class="vcard"><a class="email" href="mailto:simon.fraser@apple.com" title="Simon Fraser (smfr) <simon.fraser@apple.com>"> <span class="fn">Simon Fraser (smfr)</span></a>
</span></b>
<pre>So the memory cache prunes on a timer, and destroys decoded image data via:
* frame #0: 0x0000000117c78a9c WebCore`WebCore::BitmapImage::destroyDecodedData(this=0x0000000123a345c0, destroyAll=true) at BitmapImage.cpp:68
frame #1: 0x0000000117cbade3 WebCore`WebCore::CachedImage::destroyDecodedData(this=0x00000001297bf200) at CachedImage.cpp:489
frame #2: 0x0000000119987629 WebCore`WebCore::MemoryCache::pruneLiveResourcesToSize(this=0x000000011b9ff1d0, targetSize=95630128, shouldDestroyDecodedDataForAllLiveResources=false) at MemoryCache.cpp:338
frame #3: 0x0000000119987486 WebCore`WebCore::MemoryCache::pruneLiveResources(this=0x000000011b9ff1d0, shouldDestroyDecodedDataForAllLiveResources=false) at MemoryCache.cpp:265
frame #4: 0x000000011998526a WebCore`WebCore::MemoryCache::prune(this=0x000000011b9ff1d0) at MemoryCache.cpp:731
...
frame #10: 0x000000011998cff9 WebCore`std::__1::__function::__func<std::__1::__bind<void (WebCore::MemoryCache::*&)(), WebCore::MemoryCache*>, std::__1::allocator<std::__1::__bind<void (WebCore::MemoryCache::*&)(), WebCore::MemoryCache*> >, void ()>::operator(this=0x000000011b9ff3a0)() at functional:1437
frame #11: 0x0000000117ab6b0a WebCore`std::__1::function<void ()>::operator(this=0x000000011b9ff3a0)() const at functional:1817
frame #12: 0x0000000117ab6a29 WebCore`WebCore::Timer::fired(this=0x000000011b9ff360) at Timer.h:148</pre>
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