Cleanup: Update the path to gfx size headers.

chrome/browser/thumbnails/content_analysis.h

 // Copyright (c) 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 CHROME_BROWSER_THUMBNAILS_CONTENT_ANALYSIS_H_
 #define CHROME_BROWSER_THUMBNAILS_CONTENT_ANALYSIS_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/size.h"
+#include "ui/gfx/geometry/size.h"
 
 class SkBitmap;
 
 namespace thumbnailing_utils {
 
 // Compute in-place gaussian gradient magnitude of |input_bitmap| with sigma
 // |kernel_sigma|. |input_bitmap| is requried to be of SkBitmap::kA8_Config
 // type. The routine computes first-order gaussian derivative on a
 // gaussian-smoothed image. Beware, this is fairly slow since kernel size is
 // 4 * kernel_sigma + 1.
@@ skipping 52 matching lines @@
 // |kernel_sigma| defines the degree of image smoothing in gradient computation.
 // For a natural-sized (not shrunk) screenshot at 96 DPI and regular font size
 // 5.0 was determined to be a good value.
 SkBitmap CreateRetargetedThumbnailImage(const SkBitmap& source_bitmap,
                                         const gfx::Size& target_size,
                                         float kernel_sigma);
 
 }  // namespace thumbnailing_utils
 
 #endif  // CHROME_BROWSER_THUMBNAILS_CONTENT_ANALYSIS_H_