Do not use inline context for the first float child.

third_party/WebKit/Source/core/layout/ng/ng_block_node.cc

Index: third_party/WebKit/Source/core/layout/ng/ng_block_node.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_block_node.cc b/third_party/WebKit/Source/core/layout/ng/ng_block_node.cc
index 96402b5f64b35d33df7bb8377a1409ecae153d5f..8156b40a2c42cb81f29fbafb559c9a6dc2e44f6c 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_block_node.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_block_node.cc
@@ -229,11 +229,15 @@ static bool ShouldHandleByInlineContext(LayoutObject* child) {
   // Prefer inline formatting context because 1) floats/OOF at the beginning
   // and in the middle of inline should be handled in the same code, and 2)
   // it matches to the LayoutObject tree.
-  for (; child; child = child->NextSibling()) {
-    if (child->IsInline())
+  for (LayoutObject* child_runner = child; child_runner;
+       child_runner = child_runner->NextSibling()) {
+    if (child_runner->IsInline())
       return true;
-    if (child->IsFloating() || child->IsOutOfFlowPositioned())
+    if (child_runner->IsFloating() || child_runner->IsOutOfFlowPositioned()) {
+      if (child_runner == child)
+        return false;
       continue;
+    }
     return false;
   }
   // All children are either float or OOF.