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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_AURA_RESIZE_LOCK_H_
      6 #define CONTENT_BROWSER_AURA_RESIZE_LOCK_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "content/common/content_export.h"
     10 #include "ui/gfx/size.h"
     11 
     12 namespace content {
     13 
     14 class CONTENT_EXPORT ResizeLock {
     15  public:
     16   virtual ~ResizeLock();
     17 
     18   virtual bool GrabDeferredLock();
     19   virtual void UnlockCompositor();
     20 
     21   const gfx::Size& expected_size() const { return new_size_; }
     22 
     23  protected:
     24   ResizeLock(const gfx::Size new_size, bool defer_compositor_lock);
     25 
     26   virtual void LockCompositor();
     27 
     28  private:
     29   gfx::Size new_size_;
     30   bool defer_compositor_lock_;
     31 
     32   DISALLOW_COPY_AND_ASSIGN(ResizeLock);
     33 };
     34 
     35 }  // namespace content
     36 
     37 #endif  // CONTENT_BROWSER_AURA_RESIZE_LOCK_H_
     38