gfx: Rename canvas SaveAndUnscale to UnscaleTheDeviceScaleFactor.

chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc

Index: chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
diff --git a/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc b/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
index 4cc26fc1ae395aa8048be8027f57425df37f8304..0e4639a0c99f51caa1688ef5d25d78cb7f47ce3e 100644
--- a/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
+++ b/chrome/browser/ui/views/bookmarks/bookmark_bar_view.cc
@@ -477,10 +477,11 @@ class BookmarkBarView::ButtonSeparatorView : public views::View {
 
   void OnPaint(gfx::Canvas* canvas) override {
     if (ui::MaterialDesignController::IsModeMaterial()) {
+      ScopedCanvas scoped(canvas);
       // 1px wide at all scale factors. If there is an uneven amount of padding
       // left over, place the extra pixel on the outside, i.e. away from the
       // "Other bookmarks" folder.
-      const float scale = canvas->SaveAndUnscale();
+      const float scale = canvas->UnscaleTheDeviceScaleFactor();
       const gfx::RectF scaled_bounds =
           gfx::ScaleRect(gfx::RectF(bounds()), scale);
 
@@ -496,7 +497,6 @@ class BookmarkBarView::ButtonSeparatorView : public views::View {
           SkColorSetA(GetThemeProvider()->GetColor(
                           ThemeProperties::COLOR_TOOLBAR_BUTTON_ICON),
                       0x4D));
-      canvas->Restore();
     } else {
       PaintVerticalDivider(
           canvas, kSeparatorStartX, height(), 1, kEdgeDividerColor,