Don't let rounding prematurely influence document size when printing

third_party/WebKit/Source/web/WebLocalFrameImpl.h

 /*
  * Copyright (C) 2009 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 160 matching lines @@
     int printBegin(const WebPrintParams&, const WebNode& constrainToNode) override;
     float printPage(int pageToPrint, WebCanvas*) override;
     float getPrintPageShrink(int page) override;
     void printEnd() override;
     bool isPrintScalingDisabledForPlugin(const WebNode&) override;
     bool getPrintPresetOptionsForPlugin(const WebNode&, WebPrintPresetOptions*) override;
     bool hasCustomPageSizeStyle(int pageIndex) override;
     bool isPageBoxVisible(int pageIndex) override;
     void pageSizeAndMarginsInPixels(
         int pageIndex,
-        WebSize& pageSize,
+        WebDoubleSize& pageSize,
         int& marginTop,
         int& marginRight,
         int& marginBottom,
         int& marginLeft) override;
     WebString pageProperty(const WebString& propertyName, int pageIndex) override;
     void printPagesWithBoundaries(WebCanvas*, const WebSize&) override;
 
     void dispatchMessageEventWithOriginCheck(
         const WebSecurityOrigin& intendedTargetOrigin,
         const WebDOMEvent&) override;
@@ skipping 204 matching lines @@
     // Accomplish that by keeping a self-referential Persistent<>. It is
     // cleared upon close().
     SelfKeepAlive<WebLocalFrameImpl> m_selfKeepAlive;
 };
 
 DEFINE_TYPE_CASTS(WebLocalFrameImpl, WebFrame, frame, frame->isWebLocalFrame(), frame.isWebLocalFrame());
 
 } // namespace blink
 
 #endif