Only exclude workarea from touch-exploration with active shell-surface

components/exo/pointer.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/exo/pointer.h"
 
 #include "ash/common/shell_window_ids.h"
 #include "ash/display/display_manager.h"
 #include "components/exo/pointer_delegate.h"
 #include "components/exo/pointer_stylus_delegate.h"
@@ skipping 115 matching lines @@
 void Pointer::SetStylusDelegate(PointerStylusDelegate* delegate) {
   stylus_delegate_ = delegate;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ui::EventHandler overrides:
 
 void Pointer::OnMouseEvent(ui::MouseEvent* event) {
   Surface* target = GetEffectiveTargetForEvent(event);
 
+  if (event->flags() & ui::EF_TOUCH_ACCESSIBILITY)
+    return;
+
   auto new_pointer_type = pointer_type_;
   if ((event->flags() & ui::EF_IS_SYNTHESIZED) == 0) {
     new_pointer_type = event->pointer_details().pointer_type;
     if (new_pointer_type == ui::EventPointerType::POINTER_TYPE_UNKNOWN)
       new_pointer_type = ui::EventPointerType::POINTER_TYPE_MOUSE;
   }
 
   // If target is different than the current pointer focus then we need to
   // generate enter and leave events.
   if (target != focus_) {
@@ skipping 220 matching lines @@
 
   if (ui_scale != cursor_scale_) {
     gfx::Transform transform;
     transform.Scale(ui_scale, ui_scale);
     widget_->GetNativeWindow()->SetTransform(transform);
     cursor_scale_ = ui_scale;
   }
 }
 
 }  // namespace exo