Index: cc/trees/layer_tree_host_impl.cc |
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc |
index 1974eb1dcc8fc394ae5a201b8d53a867833d1892..642ab1f536db81277243fc48c7117b58f51f8e0d 100644 |
--- a/cc/trees/layer_tree_host_impl.cc |
+++ b/cc/trees/layer_tree_host_impl.cc |
@@ -2690,6 +2690,8 @@ InputHandler::ScrollStatus LayerTreeHostImpl::ScrollBeginImpl( |
client_->RenewTreePriority(); |
RecordCompositorSlowScrollMetric(type, CC_THREAD); |
+ UpdateScrollSourceInfo(wheel_scrolling_); |
+ |
return scroll_status; |
} |
@@ -3486,6 +3488,10 @@ std::unique_ptr<ScrollAndScaleSet> LayerTreeHostImpl::ProcessScrollDeltas() { |
active_tree_->elastic_overscroll()->PullDeltaForMainThread(); |
scroll_info->swap_promises.swap(swap_promises_for_main_thread_scroll_update_); |
+ // Record and reset scroll_source_info_; |
+ scroll_info->scroll_source_info = scroll_source_info_; |
+ scroll_source_info_ = ScrollSourceInfo::NONE; |
+ |
return scroll_info; |
} |
@@ -4188,4 +4194,11 @@ void LayerTreeHostImpl::SetContextVisibility(bool is_visible) { |
} |
} |
+void LayerTreeHostImpl::UpdateScrollSourceInfo(bool is_wheel_scroll) { |
+ if (is_wheel_scroll) |
+ scroll_source_info_ |= ScrollSourceInfo::SCROLLED_BY_WHEEL; |
+ else |
+ scroll_source_info_ |= ScrollSourceInfo::SCROLLED_BY_TOUCH; |
+} |
+ |
} // namespace cc |