Worker: Remove cross-thread PostTask functions from WorkerLoaderProxy

third_party/WebKit/Source/core/workers/WorkerLoaderProxy.cpp

Index: third_party/WebKit/Source/core/workers/WorkerLoaderProxy.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkerLoaderProxy.cpp b/third_party/WebKit/Source/core/workers/WorkerLoaderProxy.cpp
index 1f7f960f2a2d0d0dcf7c0521e3a2cdebf7e64720..59b65a05d4c5242d32a803ec79d0b05e70018dbe 100644
--- a/third_party/WebKit/Source/core/workers/WorkerLoaderProxy.cpp
+++ b/third_party/WebKit/Source/core/workers/WorkerLoaderProxy.cpp
@@ -18,36 +18,13 @@ WorkerLoaderProxy::~WorkerLoaderProxy() {
 
 void WorkerLoaderProxy::DetachProvider(
     WorkerLoaderProxyProvider* proxy_provider) {
-  MutexLocker locker(lock_);
   DCHECK(IsMainThread());
   DCHECK_EQ(proxy_provider, loader_proxy_provider_);
   loader_proxy_provider_ = nullptr;
 }
 
-void WorkerLoaderProxy::PostTaskToLoader(
-    const WebTraceLocation& location,
-    std::unique_ptr<WTF::CrossThreadClosure> task) {
-  MutexLocker locker(lock_);
-  DCHECK(!IsMainThread());
-  if (!loader_proxy_provider_)
-    return;
-  loader_proxy_provider_->PostTaskToLoader(location, std::move(task));
-}
-
-void WorkerLoaderProxy::PostTaskToWorkerGlobalScope(
-    const WebTraceLocation& location,
-    std::unique_ptr<WTF::CrossThreadClosure> task) {
-  DCHECK(IsMainThread());
-  // Note: No locking needed for the access from the main thread.
-  if (!loader_proxy_provider_)
-    return;
-  loader_proxy_provider_->PostTaskToWorkerGlobalScope(location,
-                                                      std::move(task));
-}
-
 ThreadableLoadingContext* WorkerLoaderProxy::GetThreadableLoadingContext() {
   DCHECK(IsMainThread());
-  // Note: No locking needed for the access from the main thread.
   if (!loader_proxy_provider_)
     return nullptr;
   DCHECK(