Move ContentsSize and HasVisibleContent methods from WebFrame to WebLocalFrame.

third_party/WebKit/public/web/WebLocalFrame.h

 // Copyright 2014 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.
 
 #ifndef WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include <memory>
 #include <set>
 
 #include "WebCompositionUnderline.h"
 #include "WebFrame.h"
 #include "WebFrameLoadType.h"
 #include "WebHistoryItem.h"
 #include "public/platform/WebCachePolicy.h"
+#include "public/platform/WebSize.h"
 #include "public/platform/WebURLError.h"
 #include "public/platform/WebURLRequest.h"
 #include "public/platform/site_engagement.mojom-shared.h"
 #include "v8/include/v8.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace blink {
@@ skipping 671 matching lines @@
   // This is used for situations where we want to reload a different URL because
   // of a redirect.
   virtual void ReloadWithOverrideURL(const WebURL& override_url,
                                      WebFrameLoadType) = 0;
 
   // Load the given URL.
   virtual void LoadRequest(const WebURLRequest&) = 0;
 
   // Geometry -----------------------------------------------------------------
 
+  // NOTE: These routines do not force page layout so their results may
+  // not be accurate if the page layout is out-of-date.
+
   // The scroll offset from the top-left corner of the frame in pixels.
   virtual WebSize GetScrollOffset() const = 0;
   virtual void SetScrollOffset(const WebSize&) = 0;
 
   // If set to false, do not draw scrollbars on this frame's view.
   virtual void SetCanHaveScrollbars(bool) = 0;
 
+  // The size of the contents area.
+  virtual WebSize ContentsSize() const = 0;
+
+  // Returns true if the contents (minus scrollbars) has non-zero area.
+  virtual bool HasVisibleContent() const = 0;
+
   // Printing ------------------------------------------------------------
 
   // Reformats the WebFrame for printing. WebPrintParams specifies the printable
   // content size, paper size, printable area size, printer DPI and print
   // scaling option. If constrainToNode node is specified, then only the given
   // node is printed (for now only plugins are supported), instead of the entire
   // frame.
   // Returns the number of pages that can be printed at the given
   // page size.
   virtual int PrintBegin(const WebPrintParams&,
@@ skipping 41 matching lines @@
   // to call these on a WebLocalFrame.
   bool IsWebLocalFrame() const override = 0;
   WebLocalFrame* ToWebLocalFrame() override = 0;
   bool IsWebRemoteFrame() const override = 0;
   WebRemoteFrame* ToWebRemoteFrame() override = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebLocalFrame_h