Consistent CopyFromSurface() API, consolidated to RWHV

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 <algorithm>
 
 #include "base/metrics/histogram_macros.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 57 matching lines @@
       GetClippingRect(gfx::Size(bitmap.width(), bitmap.height()),
                       gfx::Size(desired_width, desired_height),
                       clip_result);
   SkIRect src_rect = { clipping_rect.x(), clipping_rect.y(),
                        clipping_rect.right(), clipping_rect.bottom() };
   SkBitmap clipped_bitmap;
   bitmap.extractSubset(&clipped_bitmap, src_rect);
   return clipped_bitmap;
 }
 
-// RenderWidgetHost::CopyFromBackingStore can be costly especially when it is
+// RenderWidgetHostView::CopyFromSurface() can be costly especially when it is
 // necessary to read back the web contents image data from GPU. As the cost is
 // roughly proportional to the number of the copied pixels, the size of the
 // copied pixels should be as small as possible.
 // static
 gfx::Size SimpleThumbnailCrop::GetCopySizeForThumbnail(
     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) {
@@ skipping 106 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