Move ContentsSize and HasVisibleContent methods from WebFrame to WebLocalFrame.

third_party/WebKit/Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1270 matching lines @@
     LocalFrame* frame = node->GetDocument().GetFrame();
     return frame->View()->ContentsToRootFrame(point_in_root_frame);
   }
   return WebRect();
 }
 
 WebRect WebViewImpl::WidenRectWithinPageBounds(const WebRect& source,
                                                int target_margin,
                                                int minimum_margin) {
   WebSize max_size;
-  if (MainFrame())
-    max_size = MainFrame()->ContentsSize();
   IntSize scroll_offset;
   if (MainFrame()) {
     // TODO(lukasza): https://crbug.com/734209: The DCHECK below holds now, but
     // only because all of the callers don't support OOPIFs and exit early if
     // the main frame is not local.
     DCHECK(MainFrame()->IsWebLocalFrame());
+    max_size = MainFrame()->ToWebLocalFrame()->ContentsSize();
     scroll_offset = MainFrame()->ToWebLocalFrame()->GetScrollOffset();
   }
   int left_margin = target_margin;
   int right_margin = target_margin;
 
   const int absolute_source_x = source.x + scroll_offset.Width();
   if (left_margin > absolute_source_x) {
     left_margin = absolute_source_x;
     right_margin = std::max(left_margin, minimum_margin);
   }
@@ skipping 2816 matching lines @@
   if (focused_frame->LocalFrameRoot() != MainFrameImpl()->GetFrame())
     return nullptr;
   return focused_frame;
 }
 
 LocalFrame* WebViewImpl::FocusedLocalFrameAvailableForIme() const {
   return ime_accept_events_ ? FocusedLocalFrameInWidget() : nullptr;
 }
 
 }  // namespace blink