Avoid rounding down viewport dimensions in Media Queries

third_party/WebKit/Source/core/css/MediaValuesCached.cpp

 // 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.
 
 #include "config.h"
 #include "core/css/MediaValuesCached.h"
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 82 matching lines @@
     // Oilpan objects are safe to send to another thread as long as the thread
     // does not outlive the thread used for creation. MediaValues are
     // allocated on the main thread and may be passed to the parser thread,
     // so this should be safe.
     return true;
 #else
     return hasOneRef();
 #endif
 }
 
-int MediaValuesCached::viewportWidth() const
+double MediaValuesCached::viewportWidth() const
 {
     return m_data.viewportWidth;
 }
 
-int MediaValuesCached::viewportHeight() const
+double MediaValuesCached::viewportHeight() const
 {
     return m_data.viewportHeight;
 }
 
 int MediaValuesCached::deviceWidth() const
 {
     return m_data.deviceWidth;
 }
 
 int MediaValuesCached::deviceHeight() const
@@ skipping 59 matching lines @@
 Document* MediaValuesCached::document() const
 {
     return nullptr;
 }
 
 bool MediaValuesCached::hasValues() const
 {
     return true;
 }
 
-void MediaValuesCached::setViewportWidth(int width)
+void MediaValuesCached::setViewportWidth(double width)
 {
     m_data.viewportWidth = width;
 }
 
-void MediaValuesCached::setViewportHeight(int height)
+void MediaValuesCached::setViewportHeight(double height)
 {
     m_data.viewportHeight = height;
 }
 
 } // namespace