1 files changed, 46 insertions, 0 deletions
diff --git a/content/browser/aura/compositor_resize_lock.h b/content/browser/aura/compositor_resize_lock.h
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+++ b/content/browser/aura/compositor_resize_lock.h
@@ -0,0 +1,46 @@
+// 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.
+
+#ifndef CONTENT_BROWSER_AURA_RESIZE_LOCK_AURA_H_
+#define CONTENT_BROWSER_AURA_RESIZE_LOCK_AURA_H_
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/time/time.h"
+#include "content/browser/aura/resize_lock.h"
+
+namespace aura { class RootWindow; }
+
+namespace ui { class CompositorLock; }
+
+namespace content {
+
+// Used to prevent further resizes while a resize is pending.
+class CompositorResizeLock : public ResizeLock {
+ public:
+  CompositorResizeLock(aura::RootWindow* root_window,
+                 const gfx::Size new_size,
+                 bool defer_compositor_lock,
+                 const base::TimeDelta& timeout);
+  virtual ~CompositorResizeLock();
+
+  virtual bool GrabDeferredLock() OVERRIDE;
+  virtual void UnlockCompositor() OVERRIDE;
+
+ protected:
+  virtual void LockCompositor() OVERRIDE;
+  void CancelLock();
+
+ private:
+  aura::RootWindow* root_window_;
+  scoped_refptr<ui::CompositorLock> compositor_lock_;
+  base::WeakPtrFactory<CompositorResizeLock> weak_ptr_factory_;
+  bool cancelled_;
+
+  DISALLOW_COPY_AND_ASSIGN(CompositorResizeLock);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_AURA_RESIZE_LOCK_AURA_H_