Making LayoutUnit conversions to Float type explicit

Source/core/frame/FrameView.cpp

Index: Source/core/frame/FrameView.cpp
diff --git a/Source/core/frame/FrameView.cpp b/Source/core/frame/FrameView.cpp
index 99b2e7368871438fa3af58c19e8cf1e0cb84e63c..68e005fe1d516a3a71ff5b3027234aa44a5ef7e6 100644
--- a/Source/core/frame/FrameView.cpp
+++ b/Source/core/frame/FrameView.cpp
@@ -2865,9 +2865,8 @@ void FrameView::forceLayoutForPagination(const FloatSize& pageSize, const FloatS
         const LayoutRect& documentRect = renderView->documentRect();
         LayoutUnit docLogicalWidth = horizontalWritingMode ? documentRect.width() : documentRect.height();
         if (docLogicalWidth > pageLogicalWidth) {
-            int expectedPageWidth = std::min<float>(documentRect.width(), pageSize.width() * maximumShrinkFactor);
-            int expectedPageHeight = std::min<float>(documentRect.height(), pageSize.height() * maximumShrinkFactor);
-            FloatSize maxPageSize = m_frame->resizePageRectsKeepingRatio(FloatSize(originalPageSize.width(), originalPageSize.height()), FloatSize(expectedPageWidth, expectedPageHeight));
+            FloatSize expectedPageSize(std::min<float>(documentRect.width().toFloat(), pageSize.width() * maximumShrinkFactor), std::min<float>(documentRect.height().toFloat(), pageSize.height() * maximumShrinkFactor));
+            FloatSize maxPageSize = m_frame->resizePageRectsKeepingRatio(FloatSize(originalPageSize.width(), originalPageSize.height()), expectedPageSize);

[leviw_travelin_and_unemployed, 2014/03/18 19:26:30]

This is actually a change in behavior (we'd floor to int then upcast it to float
again here), but if the tests pass, it seems better than the previous behavior.

             pageLogicalWidth = horizontalWritingMode ? maxPageSize.width() : maxPageSize.height();
             pageLogicalHeight = horizontalWritingMode ? maxPageSize.height() : maxPageSize.width();