Don't let rounding prematurely influence document size when printing

third_party/WebKit/Source/web/WebRemoteFrameImpl.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 WebRemoteFrameImpl_h
 #define WebRemoteFrameImpl_h
 
 #include "core/frame/RemoteFrame.h"
 #include "platform/heap/SelfKeepAlive.h"
 #include "public/platform/WebInsecureRequestPolicy.h"
@@ skipping 100 matching lines @@
     void setCaretVisible(bool) override;
     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 hasCustomPageSizeStyle(int pageIndex) override;
     bool isPageBoxVisible(int pageIndex) override;
     void pageSizeAndMarginsInPixels(
         int pageIndex,
-        WebSize& pageSize,
+        WebFloatSize& 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 56 matching lines @@
     // Accomplish that by keeping a self-referential Persistent<>. It is
     // cleared upon close().
     SelfKeepAlive<WebRemoteFrameImpl> m_selfKeepAlive;
 };
 
 DEFINE_TYPE_CASTS(WebRemoteFrameImpl, WebFrame, frame, frame->isWebRemoteFrame(), frame.isWebRemoteFrame());
 
 } // namespace blink
 
 #endif // WebRemoteFrameImpl_h