Migrate WTF::Vector::append() to ::push_back() [part 13 of N]

third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.cpp

Index: third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.cpp
diff --git a/third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.cpp b/third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.cpp
index 10a3d8ec2ed5418826674bf613ebc3e432f12bff..17a07a79385da1e06d9129e9df02d52c42b7fafc 100644
--- a/third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.cpp
+++ b/third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.cpp
@@ -73,7 +73,7 @@ bool DeferredTaskHandler::isGraphOwner() {
 
 void DeferredTaskHandler::addDeferredBreakConnection(AudioHandler& node) {
   DCHECK(isAudioThread());
-  m_deferredBreakConnectionList.append(&node);
+  m_deferredBreakConnectionList.push_back(&node);
 }
 
 void DeferredTaskHandler::breakConnections() {
@@ -252,7 +252,7 @@ void DeferredTaskHandler::addRenderingOrphanHandler(
     PassRefPtr<AudioHandler> handler) {
   DCHECK(handler);
   DCHECK(!m_renderingOrphanHandlers.contains(handler));
-  m_renderingOrphanHandlers.append(handler);
+  m_renderingOrphanHandlers.push_back(handler);
 }
 
 void DeferredTaskHandler::requestToDeleteHandlersOnMainThread() {