gfx: Make conversions from Size to SizeF be explicit.

chrome/browser/thumbnails/simple_thumbnail_crop.cc

 // 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.
 
 #include "chrome/browser/thumbnails/simple_thumbnail_crop.h"
 
 #include "base/metrics/histogram.h"
 #include "content/public/browser/browser_thread.h"
 #include "skia/ext/platform_canvas.h"
 #include "ui/base/layout.h"
@@ skipping 72 matching lines @@
     ui::ScaleFactor scale_factor,
     const gfx::Size& thumbnail_size) {
   // The copy size returned is the pixel equivalent of |thumbnail_size|, which
   // is in DIPs.
   if (scale_factor == ui::SCALE_FACTOR_100P) {
     // In the case of 1x devices, we get a thumbnail twice as big and reduce
     // it at serve time to improve quality.
     scale_factor = ui::SCALE_FACTOR_200P;
   }
   float scale = GetScaleForScaleFactor(scale_factor);
-  return gfx::ToFlooredSize(gfx::ScaleSize(thumbnail_size, scale));
+  return gfx::ScaleToFlooredSize(thumbnail_size, scale);
 }
 
 gfx::Rect SimpleThumbnailCrop::GetClippingRect(const gfx::Size& source_size,
                                                const gfx::Size& desired_size,
                                                ClipResult* clip_result) {
   DCHECK(clip_result);
 
   float desired_aspect =
       static_cast<float>(desired_size.width()) / desired_size.height();
 
@@ skipping 30 matching lines @@
   }
   return clipping_rect;
 }
 
 // static
 gfx::Size SimpleThumbnailCrop::ComputeTargetSizeAtMaximumScale(
     const gfx::Size& given_size) {
   // TODO(mazda|oshima): Update thumbnail when the max scale factor changes.
   // crbug.com/159157.
   float max_scale_factor = gfx::ImageSkia::GetMaxSupportedScale();
-  return gfx::ToFlooredSize(gfx::ScaleSize(given_size, max_scale_factor));
+  return gfx::ScaleToFlooredSize(given_size, max_scale_factor);
 }
 
 SimpleThumbnailCrop::~SimpleThumbnailCrop() {
 }
 
 // Creates a downsampled thumbnail from the given bitmap.
 // store. The returned bitmap will be isNull if there was an error creating it.
 SkBitmap SimpleThumbnailCrop::CreateThumbnail(const SkBitmap& bitmap,
                                               const gfx::Size& desired_size,
                                               ClipResult* clip_result) {
@@ skipping 39 matching lines @@
       clipped_bitmap.height() == result.height())
     clipped_bitmap.copyTo(&result, kN32_SkColorType);
 #endif
 
   LOCAL_HISTOGRAM_TIMES(kThumbnailHistogramName,
                         base::TimeTicks::Now() - begin_compute_thumbnail);
   return result;
 }
 
 } // namespace thumbnails