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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CHROME_BROWSER_THUMBNAILS_THUMBNAILING_ALGORITHM_H_ | 5 #ifndef CHROME_BROWSER_THUMBNAILS_THUMBNAILING_ALGORITHM_H_ |
| 6 #define CHROME_BROWSER_THUMBNAILS_THUMBNAILING_ALGORITHM_H_ | 6 #define CHROME_BROWSER_THUMBNAILS_THUMBNAILING_ALGORITHM_H_ |
| 7 | 7 |
| 8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
| 9 #include "chrome/browser/thumbnails/thumbnailing_context.h" | 9 #include "chrome/browser/thumbnails/thumbnailing_context.h" |
| 10 #include "ui/base/layout.h" | 10 #include "ui/base/layout.h" |
| 11 #include "ui/gfx/geometry/rect.h" | 11 #include "ui/gfx/geometry/rect.h" |
| 12 #include "ui/gfx/size.h" | 12 #include "ui/gfx/geometry/size.h" |
| 13 | 13 |
| 14 class SkBitmap; | 14 class SkBitmap; |
| 15 | 15 |
| 16 namespace thumbnails { | 16 namespace thumbnails { |
| 17 | 17 |
| 18 // An interface abstracting thumbnailing algorithms. Instances are intended to | 18 // An interface abstracting thumbnailing algorithms. Instances are intended to |
| 19 // be created by ThumbnailService's implementations and used by | 19 // be created by ThumbnailService's implementations and used by |
| 20 // ThumbnailTabHelper as consumers of captured source images. | 20 // ThumbnailTabHelper as consumers of captured source images. |
| 21 class ThumbnailingAlgorithm | 21 class ThumbnailingAlgorithm |
| 22 : public base::RefCountedThreadSafe<ThumbnailingAlgorithm> { | 22 : public base::RefCountedThreadSafe<ThumbnailingAlgorithm> { |
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| 47 const SkBitmap& bitmap) = 0; | 47 const SkBitmap& bitmap) = 0; |
| 48 | 48 |
| 49 protected: | 49 protected: |
| 50 virtual ~ThumbnailingAlgorithm() {} | 50 virtual ~ThumbnailingAlgorithm() {} |
| 51 friend class base::RefCountedThreadSafe<ThumbnailingAlgorithm>; | 51 friend class base::RefCountedThreadSafe<ThumbnailingAlgorithm>; |
| 52 }; | 52 }; |
| 53 | 53 |
| 54 } | 54 } |
| 55 | 55 |
| 56 #endif // CHROME_BROWSER_THUMBNAILS_THUMBNAILING_ALGORITHM_H_ | 56 #endif // CHROME_BROWSER_THUMBNAILS_THUMBNAILING_ALGORITHM_H_ |
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