这是一个创建于 3420 天前的主题，其中的信息可能已经有所发展或是发生改变。
The following revision refers to this bug:
https://chromium.googlesource.com/chromium/src.git/+/d53bb2ab620b6dc5e17da85dcf1b83b516c8c212
commit d53bb2ab620b6dc5e17da85dcf1b83b516c8c212
Author: ananta [email protected]
Date: Wed Aug 12 02:04:17 2015
Improve scroll performance on Windows 10 with high precision touchpads.
Chrome scrolling performance on Windows 10 with high precision touch pads, is very janky and jumpy.
Windows 10 introduces a new API called Direct Manipulation which allows consumers to support smooth
scrolling, panning etc. Mouse wheel messages are dispatched differently based on whether the window
is a Direct manipulation consumer. Microsoft recommends supporting Direct Manipulation on Windows 10
and above.
This is an intial patch to do the bare minimum to register Chrome as a Direct Manipulation consumer.
The associated functionality is provided by the newly added DirectManipulationHelper class which lives
as a member of the LegacyRenderWidgetHostHWND class which ensures that these changes are isolated cleanly.
This does smoothen scrolling on these devices. However there is still work to be done
BUG=517183,517187
不知道有没有V友装金丝雀版试试是不是触屏滑动顺畅了？我windows板子没带现在
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