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-rw-r--r--content/browser/renderer_host/backing_store_mac.mm10
1 files changed, 6 insertions, 4 deletions
diff --git a/content/browser/renderer_host/backing_store_mac.mm b/content/browser/renderer_host/backing_store_mac.mm
index 0cb5a3b..d8513e4 100644
--- a/content/browser/renderer_host/backing_store_mac.mm
+++ b/content/browser/renderer_host/backing_store_mac.mm
@@ -101,8 +101,9 @@ void BackingStoreMac::PaintToBackingStore(
gfx::Size pixel_size = gfx::ToFlooredSize(
size().Scale(device_scale_factor_));
- gfx::Rect pixel_bitmap_rect =
- ToFlooredRect(bitmap_rect.Scale(scale_factor));
+ gfx::RectF scaled_bitmap_rect = bitmap_rect;
+ scaled_bitmap_rect.Scale(scale_factor);
+ gfx::Rect pixel_bitmap_rect = ToFlooredRect(scaled_bitmap_rect);
size_t bitmap_byte_count =
pixel_bitmap_rect.width() * pixel_bitmap_rect.height() * 4;
@@ -121,8 +122,9 @@ void BackingStoreMac::PaintToBackingStore(
for (size_t i = 0; i < copy_rects.size(); i++) {
const gfx::Rect& copy_rect = copy_rects[i];
- gfx::Rect pixel_copy_rect =
- ToFlooredRect(copy_rect.Scale(scale_factor));
+ gfx::RectF scaled_copy_rect = copy_rect;
+ scaled_copy_rect.Scale(scale_factor);
+ gfx::Rect pixel_copy_rect = ToFlooredRect(scaled_copy_rect);
// Only the subpixels given by copy_rect have pixels to copy.
base::mac::ScopedCFTypeRef<CGImageRef> image(