Make UseCounter take a LocaFrame instead of any Frame

third_party/WebKit/Source/core/page/AutoscrollController.cpp

Index: third_party/WebKit/Source/core/page/AutoscrollController.cpp
diff --git a/third_party/WebKit/Source/core/page/AutoscrollController.cpp b/third_party/WebKit/Source/core/page/AutoscrollController.cpp
index 42228126b34354524138d8387478430b98df81af..c26a80efa0b807ff3e5c8934d27ee629f4d89e4f 100644
--- a/third_party/WebKit/Source/core/page/AutoscrollController.cpp
+++ b/third_party/WebKit/Source/core/page/AutoscrollController.cpp
@@ -192,7 +192,8 @@ void AutoscrollController::UpdateDragAndDrop(Node* drop_target_node,
     autoscroll_type_ = kAutoscrollForDragAndDrop;
     autoscroll_layout_object_ = scrollable;
     drag_and_drop_autoscroll_start_time_ = event_time;
-    UseCounter::Count(page_->MainFrame(), UseCounter::kDragAndDropScrollStart);
+    UseCounter::Count(autoscroll_layout_object_->GetFrame(),
+                      UseCounter::kDragAndDropScrollStart);
     StartAutoscroll();
   } else if (autoscroll_layout_object_ != scrollable) {
     drag_and_drop_autoscroll_start_time_ = event_time;
@@ -241,7 +242,7 @@ void AutoscrollController::StartMiddleClickAutoscroll(
   middle_click_autoscroll_start_pos_ = last_known_mouse_position;
   did_latch_for_middle_click_autoscroll_ = false;
 
-  UseCounter::Count(page_->MainFrame(),
+  UseCounter::Count(autoscroll_layout_object_->GetFrame(),
                     UseCounter::kMiddleClickAutoscrollStart);
   StartAutoscroll();
 }