WIP: simplified display management in ash

ui/aura/mus/window_tree_client.cc

Index: ui/aura/mus/window_tree_client.cc
diff --git a/ui/aura/mus/window_tree_client.cc b/ui/aura/mus/window_tree_client.cc
index 6094207625bebc209dee695fea0f3f9f7c638120..7c816feb39fc4b601ffc682e79d0f323903be8d2 100644
--- a/ui/aura/mus/window_tree_client.cc
+++ b/ui/aura/mus/window_tree_client.cc
@@ -1467,6 +1467,7 @@ void WindowTreeClient::RequestClose(uint32_t window_id) {
 }
 
 bool WindowTreeClient::WaitForInitialDisplays() {
+  LOG(WARNING) << "WaitForInitialDisplays got=" << got_initial_displays_;
   if (got_initial_displays_)
     return true;
 
@@ -1474,6 +1475,7 @@ bool WindowTreeClient::WaitForInitialDisplays() {
   // TODO(sky): having to block here is not ideal. http://crbug.com/594852.
   while (!got_initial_displays_ && valid_wait)
     valid_wait = binding_.WaitForIncomingMethodCall();
+  LOG(WARNING) << "wait done, valid=" << valid_wait;
   return valid_wait;
 }
 
@@ -1487,7 +1489,9 @@ WindowTreeHostMusInitParams WindowTreeClient::CreateInitParamsForNewDisplay() {
 }
 
 void WindowTreeClient::OnConnect(ClientSpecificId client_id) {
+  LOG(WARNING) << "OnConnect";
   client_id_ = client_id;
+  got_initial_displays_ = true;
   if (window_manager_delegate_)
     window_manager_delegate_->OnWmConnected();
 }