Use IntRect instead of FloatRect for window positions and sizes

Source/platform/PlatformScreen.h

 /*
  * Copyright (C) 2006 Apple Computer, 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
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PlatformScreen_h
 #define PlatformScreen_h
 
-#include "platform/geometry/FloatRect.h"
+#include "platform/geometry/IntRect.h"
 #include "public/platform/WebScreenOrientationType.h"
 #include "wtf/Forward.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class Widget;
 
 PLATFORM_EXPORT int screenDepth(Widget*);
 PLATFORM_EXPORT int screenDepthPerComponent(Widget*);
 PLATFORM_EXPORT bool screenIsMonochrome(Widget*);
 
-PLATFORM_EXPORT FloatRect screenRect(Widget*);
-PLATFORM_EXPORT FloatRect screenAvailableRect(Widget*);
+PLATFORM_EXPORT IntRect screenRect(Widget*);
+PLATFORM_EXPORT IntRect screenAvailableRect(Widget*);
 
 PLATFORM_EXPORT uint16_t screenOrientationAngle(Widget*);
 PLATFORM_EXPORT WebScreenOrientationType screenOrientationType(Widget*);
 
 } // namespace blink
 
 #endif // PlatformScreen_h