Create LineLayout api

Source/core/layout/line/TrailingObjects.cpp

Index: Source/core/layout/line/TrailingObjects.cpp
diff --git a/Source/core/layout/line/TrailingObjects.cpp b/Source/core/layout/line/TrailingObjects.cpp
index dc2e3d48104c9f15f43166b734eef2a822379141..b5e48588bc7bea2c7d917edbef83ddbcaff14b79 100644
--- a/Source/core/layout/line/TrailingObjects.cpp
+++ b/Source/core/layout/line/TrailingObjects.cpp
@@ -24,6 +24,7 @@
 #include "config.h"
 #include "core/layout/line/TrailingObjects.h"
 
+#include "core/layout/line/BreakingContextInlineHeaders.h"
 #include "core/layout/line/InlineIterator.h"
 
 namespace blink {
@@ -49,7 +50,7 @@ void TrailingObjects::updateMidpointsForTrailingObjects(LineMidpointState& lineM
         for (size_t i = 0; i < m_objects.size(); ++i) {
             if (currentMidpoint >= lineMidpointState.numMidpoints()) {
                 // We don't have a midpoint for this box yet.
-                lineMidpointState.ensureLineBoxInsideIgnoredSpaces(m_objects[i]);
+                ensureLineBoxInsideIgnoredSpaces(&lineMidpointState, m_objects[i]);
             } else {
                 ASSERT(lineMidpointState.midpoints()[currentMidpoint].object() == m_objects[i]);
                 ASSERT(lineMidpointState.midpoints()[currentMidpoint + 1].object() == m_objects[i]);
@@ -61,10 +62,10 @@ void TrailingObjects::updateMidpointsForTrailingObjects(LineMidpointState& lineM
         // Add a new end midpoint that stops right at the very end.
         unsigned length = m_whitespace->textLength();
         unsigned pos = length >= 2 ? length - 2 : UINT_MAX;
-        InlineIterator endMid(0, m_whitespace, pos);
+        InlineIterator endMid(0, LineLayoutItem(m_whitespace), pos);
         lineMidpointState.startIgnoringSpaces(endMid);
         for (size_t i = 0; i < m_objects.size(); ++i) {
-            lineMidpointState.ensureLineBoxInsideIgnoredSpaces(m_objects[i]);
+            ensureLineBoxInsideIgnoredSpaces(&lineMidpointState, m_objects[i]);
         }
     }
 }