Refactor fixed layout mode

Source/core/rendering/RenderView.cpp

Index: Source/core/rendering/RenderView.cpp
diff --git a/Source/core/rendering/RenderView.cpp b/Source/core/rendering/RenderView.cpp
index e1ab0f869ed6606ca262ca9650157a4c85e83ece..00a9a18c065bd68b74713b38f7fd507540021d84 100644
--- a/Source/core/rendering/RenderView.cpp
+++ b/Source/core/rendering/RenderView.cpp
@@ -977,20 +977,18 @@ IntRect RenderView::documentRect() const
 int RenderView::viewHeight() const
 {
     int height = 0;
-    if (!shouldUsePrintingLayout() && m_frameView) {
-        height = m_frameView->layoutHeight();
-        height = m_frameView->useFixedLayout() ? ceilf(style()->effectiveZoom() * float(height)) : height;
-    }
+    if (!shouldUsePrintingLayout() && m_frameView)
+        height = m_frameView->layoutSize().height();
+
     return height;
 }
 
 int RenderView::viewWidth() const
 {
     int width = 0;
-    if (!shouldUsePrintingLayout() && m_frameView) {
-        width = m_frameView->layoutWidth();
-        width = m_frameView->useFixedLayout() ? ceilf(style()->effectiveZoom() * float(width)) : width;
-    }
+    if (!shouldUsePrintingLayout() && m_frameView)
+        width = m_frameView->layoutSize().width();
+
     return width;
 }