Random fixes for mash bridge classes

components/mus/public/cpp/lib/window_tree_client_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/mus/public/cpp/lib/window_tree_client_impl.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 148 matching lines @@
     }
   }
 
   // Delete the non-owned windows last. In the typical case these are roots. The
   // exception is the window manager and embed roots, which may know about
   // other random windows that it doesn't own.
   // NOTE: we manually delete as we're a friend.
   while (!tracker.windows().empty())
     delete tracker.windows().front();
 
+  FOR_EACH_OBSERVER(WindowTreeConnectionObserver, observers_,
+                    OnWillDestroyConnection(this));
+
   delegate_->OnConnectionLost(this);
 }
 
 void WindowTreeClientImpl::ConnectViaWindowTreeFactory(
     shell::Connector* connector) {
   // Clients created with no root shouldn't delete automatically.
   delete_on_no_roots_ = false;
 
   // The connection id doesn't really matter, we use 101 purely for debugging.
   connection_id_ = 101;
@@ skipping 920 matching lines @@
 
 void WindowTreeClientImpl::SetUnderlaySurfaceOffsetAndExtendedHitArea(
     Window* window,
     const gfx::Vector2d& offset,
     const gfx::Insets& hit_area) {
   window_manager_internal_client_->SetUnderlaySurfaceOffsetAndExtendedHitArea(
       server_id(window), offset.x(), offset.y(), mojo::Insets::From(hit_area));
 }
 
 }  // namespace mus