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TBR=darin
BUG=none
TEST=none
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@41559 0039d316-1c4b-4281-b951-d872f2087c98
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Based on some testing on a single core machine, reducing this
number below 10 doesn't seem to help. On some of the page
cycler tests (intl2 in particular), I observed some excessive
paint rect counts (>50). Those outliers seem to explain the
perf regression observed for single core machines.
R=brettw
BUG=29589
TEST=none
Review URL: http://codereview.chromium.org/481002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@34189 0039d316-1c4b-4281-b951-d872f2087c98
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Change PlatformCanvas so that it only fills with "sea foam green" when bitmap data is not externally supplied. Modifying the interface to make this an option bloated the CL too much. I may do this as a follow-up.
Adds a new --show-paint-rects command line flag that will render a border around paint rects to help debug and study WebKit painting issues.
R=brettw
BUG=25905
TEST=none
Review URL: http://codereview.chromium.org/414016
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@33861 0039d316-1c4b-4281-b951-d872f2087c98
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After this change, I plan on changing the PaintAggregator algorithm.
Some things to note:
1- Previously, it was possible to send overlapping ViewHostMsg_PaintRect and
ViewHostMsg_ScrollRect messages. This happened when scrolling a page since the
scrollbar would need to be repainted while the contents of the page are being
scrolled. With this CL, this overlapping behavior is a bit more explicit.
2- There was a TODO about view_size clipping that I've eliminated. I was able
to eliminate it because I realized that it is correct to clip the rects passed
by didInvalidateRect and didScrollRect to the size of the RenderWidget.
Apparently WebKit can sometimes invalidate regions outside the view.
R=brettw
BUG=25905
TEST=none
Review URL: http://codereview.chromium.org/403005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@32496 0039d316-1c4b-4281-b951-d872f2087c98
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