Migrate WTF::Deque::append() to ::push_back()

third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h

Index: third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
diff --git a/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h b/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
index f858b783f26962bed510d4a4f2e6520c5ed08254..8df1edf764492c2cd58db2c1f2d91f761dbde7f1 100644
--- a/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
+++ b/third_party/WebKit/Source/modules/fetch/BytesConsumerTestUtil.h
@@ -108,7 +108,7 @@ class BytesConsumerTestUtil {
 
     // Add a command to this handle. This function must be called BEFORE
     // any BytesConsumer methods are called.
-    void add(const Command& command) { m_commands.append(command); }
+    void add(const Command& command) { m_commands.push_back(command); }
 
     Result beginRead(const char** buffer, size_t* available) override;
     Result endRead(size_t readSize) override;