tree cc703f553e88a3a215b4888dae2427988d76238c
parent 48d21403d270bd619188a7d8686fdd58a00b4145
author simon.fraser@apple.com <simon.fraser@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1557946425 +0000
committer simon.fraser@apple.com <simon.fraser@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1557946425 +0000

Make LOG_WITH_STREAM more efficient
https://bugs.webkit.org/show_bug.cgi?id=197905

Reviewed by Alex Christensen.
Source/WebCore:

No longer need to conditionalize ClipRects logging on the channel being enabled
since LOG_WITH_STREAM fix the performance problem.

Convert some RenderLayerCompositor logging to use LOG_WITH_STREAM.

* rendering/RenderLayer.cpp:
(WebCore::RenderLayer::calculateClipRects const):
(WebCore::clipRectsLogEnabled): Deleted.
* rendering/RenderLayerCompositor.cpp:
(WebCore::RenderLayerCompositor::computeCompositingRequirements):
(WebCore::RenderLayerCompositor::traverseUnchangedSubtree):

Source/WebCore/PAL:

Make the LOG_WITH_STREAM macro check that the log channel is enabled before
building the stream.

* pal/LogMacros.h:

Source/WTF:

Add a streamable Repeat() class that can be used to output a series of characters.
This is useful for indenting output.

* wtf/text/TextStream.h:
(WTF::TextStream::repeat::repeat):
(WTF::TextStream::operator<<):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@245336 268f45cc-cd09-0410-ab3c-d52691b4dbfc