Continue converting to explicit LayoutUnit constructors

third_party/WebKit/Source/platform/LayoutUnit.h

Index: third_party/WebKit/Source/platform/LayoutUnit.h
diff --git a/third_party/WebKit/Source/platform/LayoutUnit.h b/third_party/WebKit/Source/platform/LayoutUnit.h
index 6dc55022c396d84018b473653d709d7886c6ea4c..ddae437f424dfc4a51a650c82b0c997624a37062 100644
--- a/third_party/WebKit/Source/platform/LayoutUnit.h
+++ b/third_party/WebKit/Source/platform/LayoutUnit.h
@@ -158,11 +158,16 @@ public:
         return m_value >> kLayoutUnitFractionalBits;
     }
 
-    LayoutUnit clampToZero() const
+    LayoutUnit clampNegativeToZero() const
     {
         return std::max(*this, LayoutUnit());
     }
 
+    LayoutUnit clampPositiveToZero() const
+    {
+        return std::min(*this, LayoutUnit());
+    }
+
     LayoutUnit fraction() const
     {
         // Add the fraction to the size (as opposed to the full location) to avoid overflows.