Allow scrolling a page with selection after long-press on whitespace

content/browser/renderer_host/input/touch_selection_controller_client_aura.cc

Index: content/browser/renderer_host/input/touch_selection_controller_client_aura.cc
diff --git a/content/browser/renderer_host/input/touch_selection_controller_client_aura.cc b/content/browser/renderer_host/input/touch_selection_controller_client_aura.cc
index 2cbc8a12f8300b90557f26cdf1c03d53bee0511a..58b42d485f886a41e7427374cf528cf3a19ea578 100644
--- a/content/browser/renderer_host/input/touch_selection_controller_client_aura.cc
+++ b/content/browser/renderer_host/input/touch_selection_controller_client_aura.cc
@@ -142,6 +142,7 @@ void TouchSelectionControllerClientAura::OnTouchUp() {
 }
 
 void TouchSelectionControllerClientAura::OnScrollStarted() {
+  rwhva_->selection_controller()->OnScrollBeginEvent();

[sadrul, 2016/01/04 21:00:42]

I think this should go in
RenderWidgetHostViewAura::HandleGestureForTouchSelection() instead. RWHVAura and
RWHVAndroid both directly talk to TouchSelectionController for WillHandle*
events. RWHVAndroid directly talks to the TSC for OnScrollBeginEvent(), so
RWHVAura should too (instead of going through this client here).

[mohsen, 2016/01/05 19:46:17]

Done.

   scroll_in_progress_ = true;
   rwhva_->selection_controller()->SetTemporarilyHidden(true);
   UpdateQuickMenu();