Per-tile painting feature is currently not exposed in WebLayerTreeView::Settings, which prevents it from being used by the browser compositor.
https://bugs.webkit.org/show_bug.cgi?id=75591 exposes it, but it hasn't landed yet. Also, be aware that we can't use it in the browser until http://code.google.com/p/chromium/issues/detail?id=103648 is fixed.
Created attachment 123816 [details] Patch
Comment on attachment 123816 [details] Patch LGTM
(In reply to comment #1) > https://bugs.webkit.org/show_bug.cgi?id=75591 exposes it, but it hasn't landed yet. OK, I attached a simple patch to this bug in case we want to land something prior to that patch. > Also, be aware that we can't use it in the browser until http://code.google.com/p/chromium/issues/detail?id=103648 is fixed.
for the chromium side: https://chromiumcodereview.appspot.com/9297006
Created attachment 126857 [details] Patch Rebase
Please wait for approval from fishd@chromium.org before submitting because this patch contains changes to the Chromium public API.
Created attachment 126904 [details] Patch
Created attachment 126974 [details] Patch Rebase
Attachment 126974 [details] did not pass style-queue: Failed to run "['Tools/Scripts/update-webkit']" exit_code: 9 Updating OpenSource First, rewinding head to replay your work on top of it... Applying: [Mac][Win][WK2] Switch to RFC 6455 protocol for WebSockets Using index info to reconstruct a base tree... <stdin>:1578: trailing whitespace. <stdin>:1647: trailing whitespace. <stdin>:1657: trailing whitespace. <stdin>:1672: trailing whitespace. return 0; <stdin>:1674: trailing whitespace. warning: squelched 7 whitespace errors warning: 12 lines add whitespace errors. Falling back to patching base and 3-way merge... warning: too many files (created: 168776 deleted: 3), skipping inexact rename detection Auto-merging LayoutTests/ChangeLog CONFLICT (content): Merge conflict in LayoutTests/ChangeLog Auto-merging Source/WebCore/ChangeLog CONFLICT (content): Merge conflict in Source/WebCore/ChangeLog Auto-merging Source/WebKit2/ChangeLog CONFLICT (content): Merge conflict in Source/WebKit2/ChangeLog Auto-merging Tools/ChangeLog CONFLICT (content): Merge conflict in Tools/ChangeLog Failed to merge in the changes. Patch failed at 0001 [Mac][Win][WK2] Switch to RFC 6455 protocol for WebSockets When you have resolved this problem run "git rebase --continue". If you would prefer to skip this patch, instead run "git rebase --skip". To restore the original branch and stop rebasing run "git rebase --abort". rebase refs/remotes/origin/master: command returned error: 1 Died at Tools/Scripts/update-webkit line 164. If any of these errors are false positives, please file a bug against check-webkit-style.
Comment on attachment 126974 [details] Patch Looks fine, R=me
Comment on attachment 126974 [details] Patch Clearing flags on attachment: 126974 Committed r107722: <http://trac.webkit.org/changeset/107722>
All reviewed patches have been landed. Closing bug.