| commit | 51d1575b2df2fc681299c84e415cc078677b95e4 | |
| author | skyostil <skyostil@chromium.org> | |
| Wed, 12 Aug 2015 12:00:07 +0000 (12 05:00 -0700) | ||
| committer | Commit bot <commit-bot@chromium.org> | |
| Wed, 12 Aug 2015 12:00:51 +0000 (12 12:00 +0000) | ||
| tree | 881db86c384e81312dd6762aceb71eee6356231a | treesnapshot (tar.gz zip) |
| parent | c24635036139d941db318145b96fda64aeeda02b | commitdiff |
cc: Make layer updating optional in BeginMainFrame
If no-one has requested a layer update, either by calling
Proxy::SetNeedsUpdateLayers() or Proxy::SetNeedsCommit(), skip computing
the layer update in BeginMainFrame. This reduces the static overhead of
a BeginMainFrame/Commit operation when the layer tree doesn't change.
This change improves efficiency, for example, when a page has a
requestAnimationFrame callback which does not modify the DOM.
BUG=490465
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1255863004
Cr-Commit-Position: refs/heads/master@{#343004}
If no-one has requested a layer update, either by calling
Proxy::SetNeedsUpdateLayers() or Proxy::SetNeedsCommit(), skip computing
the layer update in BeginMainFrame. This reduces the static overhead of
a BeginMainFrame/Commit operation when the layer tree doesn't change.
This change improves efficiency, for example, when a page has a
requestAnimationFrame callback which does not modify the DOM.
BUG=490465
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
Review URL: https://codereview.chromium.org/1255863004
Cr-Commit-Position: refs/heads/master@{#343004}