content: Remove blimp compositing dependencies.

content/renderer/gpu/queue_message_swap_promise.cc

Index: content/renderer/gpu/queue_message_swap_promise.cc
diff --git a/content/renderer/gpu/queue_message_swap_promise.cc b/content/renderer/gpu/queue_message_swap_promise.cc
index b7b3a8899d764a93cc293ac0a4a00fae023c5a90..f8a53314f9e75c0548f3236d0787df0d2f5d262b 100644
--- a/content/renderer/gpu/queue_message_swap_promise.cc
+++ b/content/renderer/gpu/queue_message_swap_promise.cc
@@ -41,20 +41,6 @@ void QueueMessageSwapPromise::DidActivate() {
 #endif
   message_queue_->DidActivate(source_frame_number_);
   // The OutputSurface will take care of the Drain+Send.
-
-  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kUseRemoteCompositing)) {
-    // The remote compositing mode doesn't have an output surface, so we need to
-    // Drain+Send on activation. Also, we can't use the SyncMessageFilter, since
-    // this call is actually made on the main thread.
-    std::vector<std::unique_ptr<IPC::Message>> messages_to_deliver;
-    std::unique_ptr<FrameSwapMessageQueue::SendMessageScope>
-        send_message_scope = message_queue_->AcquireSendMessageScope();
-    message_queue_->DrainMessages(&messages_to_deliver);
-    for (auto& message : messages_to_deliver)
-      RenderThread::Get()->Send(message.release());
-    PromiseCompleted();
-  }
 }
 
 void QueueMessageSwapPromise::WillSwap(cc::CompositorFrameMetadata* metadata) {