Rename platform/Widget to platform/FrameViewBase in core.

third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 972 matching lines @@
       // Map corner to top-frame coords.
       corner = scrollableArea->box()
                    .localToAbsoluteQuad(FloatRect(corner),
                                         TraverseDocumentBoundaries)
                    .enclosingBoundingBox();
       shouldHandleScrollGestureOnMainThreadRegion.unite(corner);
     }
   }
 
   if (const FrameView::ChildrenWidgetSet* children = frameView->children()) {
-    for (const Member<Widget>& child : *children) {
+    for (const Member<FrameViewBase>& child : *children) {
       if (!(*child).isPluginView())
         continue;
 
       PluginView* pluginView = toPluginView(child.get());
       if (pluginView->wantsWheelEvents()) {
         IntRect box = frameView->convertToRootFrame(pluginView->frameRect());
         shouldHandleScrollGestureOnMainThreadRegion.unite(box);
       }
     }
   }
@@ skipping 184 matching lines @@
           frameView ? toWebLayer(frameView->layoutViewportScrollableArea()
                                      ->layerForScrolling())
                     : nullptr) {
     return WebSize(frameView->layoutViewportScrollableArea()->contentsSize()) !=
            scrollLayer->bounds();
   }
   return false;
 }
 
 }  // namespace blink