Make UseCounter take a LocaFrame instead of any Frame

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 174 matching lines @@
     StopAutoscroll();
     return;
   }
 
   drag_and_drop_autoscroll_reference_position_ = event_position + offset;
 
   if (autoscroll_type_ == kNoAutoscroll) {
     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;
     autoscroll_layout_object_ = scrollable;
   }
 }
 
 void AutoscrollController::HandleMouseReleaseForMiddleClickAutoscroll(
     LocalFrame* frame,
     const WebMouseEvent& mouse_event) {
@@ skipping 28 matching lines @@
   // We don't want to trigger the autoscroll or the middleClickAutoscroll if
   // it's already active.
   if (autoscroll_type_ != kNoAutoscroll)
     return;
 
   autoscroll_type_ = kAutoscrollForMiddleClick;
   autoscroll_layout_object_ = scrollable;
   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();
 }
 
 static inline int AdjustedScrollDelta(int beginning_delta) {
   // This implemention matches Firefox's.
   // http://mxr.mozilla.org/firefox/source/toolkit/content/widgets/browser.xml#856.
   const int kSpeedReducer = 12;
 
   int adjusted_delta = beginning_delta / kSpeedReducer;
@@ skipping 156 matching lines @@
   } else if (east) {
     view->SetCursor(EastPanningCursor());
   } else if (west) {
     view->SetCursor(WestPanningCursor());
   } else {
     view->SetCursor(MiddlePanningCursor());
   }
 }
 
 }  // namespace blink