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| author | miletus@chromium.org <miletus@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-05-27 16:56:43 +0000 |
|---|---|---|
| committer | miletus@chromium.org <miletus@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-05-27 16:56:43 +0000 |
| commit | 8062ab2643873f883e9655d506e1f91880b923ff (patch) | |
| tree | 3b1031b6e7e592c11a0d9756ec5bd337c40c41cd /mojo/mojo_examples.gypi | |
| parent | 66bf7e2b99672c530495517abb88f5256af9d338 (diff) | |
| download | chromium_src-8062ab2643873f883e9655d506e1f91880b923ff.zip chromium_src-8062ab2643873f883e9655d506e1f91880b923ff.tar.gz chromium_src-8062ab2643873f883e9655d506e1f91880b923ff.tar.bz2 | |
Track plugin input event latency
This CL uses LatencyInfo to track the plugin input event latency.
1.Each plugin input event has an associated LatencyInfo which includes
some important components from its according ui::Event/WebInputEvent's
LatencyInfo. To do that, during the scope of
RenderWidget::OnHandleInputEvent(WebInputEvent, latency_info)
we first cache the WebInputEvent's latency_info, then if the input
event needs to be routed to plugin, we copy the important components
from the cached latency_info into the plugin input event's LatencyInfo.
2.A private API InputEventPrivate::TraceInputLatency(bool has_damage) is exposed.
3.If the event is believed to cause rendering damage, private_event.TraceInputLatency(true)
can be called, and the input event's LatencyInfo will be sent to renderer with next
plugin frame and be tracked until it reaches screen.
If the event is believed to not cause any rendering damage,
private_event.TraceInputLatency(false) can be called, and the LatencyInfo tracking ends
right at the call.
BUG=355719
TEST=with custom test touch drawing plugin, input-to-swapbuffer latency
is shown correctly in trace viewer.
Review URL: https://codereview.chromium.org/252663002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272990 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'mojo/mojo_examples.gypi')
| -rw-r--r-- | mojo/mojo_examples.gypi | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mojo/mojo_examples.gypi b/mojo/mojo_examples.gypi index da07826..d45037a 100644 --- a/mojo/mojo_examples.gypi +++ b/mojo/mojo_examples.gypi @@ -75,6 +75,7 @@ '../gpu/gpu.gyp:command_buffer_common', '../ppapi/ppapi.gyp:ppapi_c', '../ppapi/ppapi_internal.gyp:ppapi_example_gles2_spinning_cube', + '../ui/events/events.gyp:events_base', 'mojo_common_lib', 'mojo_environment_chromium', 'mojo_geometry_bindings', |