Navigation transitions: Block first response until after transitions have run.

content/browser/transition_request_manager.cc

Index: content/browser/transition_request_manager.cc
diff --git a/content/browser/transition_request_manager.cc b/content/browser/transition_request_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..22d2c69f618a80d47a34e367623036047130c457
--- /dev/null
+++ b/content/browser/transition_request_manager.cc
@@ -0,0 +1,41 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.

[nasko, 2014/05/28 22:59:00]

No "(c)" needed.

[shatch, 2014/05/29 21:41:22]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/transition_request_manager.h"
+
+#include "base/memory/singleton.h"
+
+namespace content {
+
+bool TransitionRequestManager::HasPendingTransitionRequest(
+    int renderer_id, int render_view_id) {
+  base::AutoLock lock(lock_);
+
+  std::pair<int, int> key(renderer_id, render_view_id);
+  return pending_transition_views_.find(key) !=
+      pending_transition_views_.end();
+}
+
+void TransitionRequestManager::SetHasPendingTransitionRequest(
+    int renderer_id, int render_view_id, bool has_pending) {
+  base::AutoLock lock(lock_);
+
+  std::pair<int, int> key(renderer_id, render_view_id);
+  if (has_pending) {
+    pending_transition_views_.insert(key);
+  } else {
+    pending_transition_views_.erase(key);
+  }
+}
+
+TransitionRequestManager::TransitionRequestManager() {}
+
+TransitionRequestManager::~TransitionRequestManager() {}
+
+// static
+TransitionRequestManager* TransitionRequestManager::GetInstance() {
+  return Singleton<TransitionRequestManager>::get();
+}
+
+}  // namespace content