Migrate WTF::Vector::append() to ::push_back() [part 9 of N]

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

Index: third_party/WebKit/Source/core/layout/ng/ng_layout_coordinator.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_layout_coordinator.cc b/third_party/WebKit/Source/core/layout/ng/ng_layout_coordinator.cc
index 977f1c704a528daf14a58f6df3cc3a9e095819f4..6efda393e37f3c923ee5cb4fd00ecfc598c5af0e 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_layout_coordinator.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_layout_coordinator.cc
@@ -11,7 +11,7 @@ namespace blink {
 
 NGLayoutCoordinator::NGLayoutCoordinator(NGLayoutInputNode* input_node,
                                          NGConstraintSpace* constraint_space) {
-  layout_algorithms_.append(
+  layout_algorithms_.push_back(
       NGLayoutInputNode::AlgorithmForInputNode(input_node, constraint_space));
 }
 
@@ -38,7 +38,7 @@ bool NGLayoutCoordinator::Tick(NGPhysicalFragment** out_fragment) {
       fragment_ = fragment;
       return false;
     case kChildAlgorithmRequired:
-      layout_algorithms_.append(child_algorithm);
+      layout_algorithms_.push_back(child_algorithm);
       return false;
   }