Add metric to determine how many users scroll using scrollbar |
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Issue descriptionSpecifically, this is about how many users actually use scrollbar (thumb dragging/arrow buttons) to scroll the page. This would be helpful when making decisions related to how overlay scrollbars should work. It might also be useful to tell whether users have an external mouse with a wheel or use the builtin trackpad but these may be harder to get.
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Jan 16 2017
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Jan 18 2017
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/f7734aba4cc737cdb271dd31867baad2efb83fbb commit f7734aba4cc737cdb271dd31867baad2efb83fbb Author: chaopeng <chaopeng@chromium.org> Date: Wed Jan 18 23:52:47 2017 Add metric to know how user use scrollbar This patch is adding metric to know how user use scrollbar separately for scrollbar button, clicking on the track, or dragging the thumb in different scrollbar. BUG= 675593 CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2 Review-Url: https://codereview.chromium.org/2631113003 Cr-Commit-Position: refs/heads/master@{#444550} [modify] https://crrev.com/f7734aba4cc737cdb271dd31867baad2efb83fbb/third_party/WebKit/Source/core/frame/UseCounter.h [modify] https://crrev.com/f7734aba4cc737cdb271dd31867baad2efb83fbb/third_party/WebKit/Source/core/paint/PaintInvalidationCapableScrollableArea.cpp [modify] https://crrev.com/f7734aba4cc737cdb271dd31867baad2efb83fbb/third_party/WebKit/Source/core/paint/PaintInvalidationCapableScrollableArea.h [modify] https://crrev.com/f7734aba4cc737cdb271dd31867baad2efb83fbb/third_party/WebKit/Source/platform/scroll/ScrollableArea.h [modify] https://crrev.com/f7734aba4cc737cdb271dd31867baad2efb83fbb/third_party/WebKit/Source/platform/scroll/Scrollbar.cpp [modify] https://crrev.com/f7734aba4cc737cdb271dd31867baad2efb83fbb/tools/metrics/histograms/histograms.xml
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Jan 19 2017
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Comment 1 by chaopeng@chromium.org
, Jan 16 2017