1 files changed, 35 insertions, 0 deletions
diff --git a/content/browser/aura/resize_lock.cc b/content/browser/aura/resize_lock.cc
new file mode 100644
index 0000000..4c8cd95
--- /dev/null
+++ b/content/browser/aura/resize_lock.cc
@@ -0,0 +1,35 @@
+// Copyright 2013 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 "content/browser/aura/resize_lock.h"
+
+namespace content {
+
+ResizeLock::ResizeLock(const gfx::Size new_size, bool defer_compositor_lock)
+    : new_size_(new_size),
+      defer_compositor_lock_(defer_compositor_lock) {
+  if (!defer_compositor_lock_)
+    LockCompositor();
+}
+
+ResizeLock::~ResizeLock() {
+  UnlockCompositor();
+}
+
+bool ResizeLock::GrabDeferredLock() {
+  if (!defer_compositor_lock_)
+    return false;
+  LockCompositor();
+  return true;
+}
+
+void ResizeLock::UnlockCompositor() {
+  defer_compositor_lock_ = false;
+}
+
+void ResizeLock::LockCompositor() {
+  defer_compositor_lock_ = false;
+}
+
+}  // namespace content