Cleanup gfx::Canvas now that 10562027 has landed

chrome/browser/themes/browser_theme_pack.cc

Index: chrome/browser/themes/browser_theme_pack.cc
diff --git a/chrome/browser/themes/browser_theme_pack.cc b/chrome/browser/themes/browser_theme_pack.cc
index d1b843c8b4bcc65ac9f2191dc8ac1ec492095313..bf3f74a77f6a6ba2d0011889a38dbc2dfe539384 100644
--- a/chrome/browser/themes/browser_theme_pack.cc
+++ b/chrome/browser/themes/browser_theme_pack.cc
@@ -1009,11 +1009,8 @@ void BrowserThemePack::GenerateTabBackgroundImages(ImageCache* bitmaps) const {
         int vertical_offset = bitmaps->count(prs_id)
                               ? kRestoredTabVerticalOffset : 0;
         gfx::Canvas canvas(gfx::Size(bg_tint.width(), bg_tint.height()),
+                           image_rep_to_tint.scale_factor(),
                            false);
-        SkScalar image_rep_to_tint_scale =
-            SkFloatToScalar(image_rep_to_tint.GetScale());
-        canvas.sk_canvas()->scale(image_rep_to_tint_scale,
-                                  image_rep_to_tint_scale);
         canvas.TileImageInt(bg_tint, 0, vertical_offset, 0, 0,
             bg_tint_dip_size.width(), bg_tint_dip_size.height());
 
@@ -1024,9 +1021,7 @@ void BrowserThemePack::GenerateTabBackgroundImages(ImageCache* bitmaps) const {
           canvas.TileImageInt(*overlay, 0, 0, bg_tint_dip_size.width(),
                               overlay->height());
         }
-        SkBitmap bg_tab = canvas.ExtractBitmap();
-        tinted_image.AddRepresentation(gfx::ImageSkiaRep(bg_tab,
-            image_rep_to_tint.scale_factor()));
+        tinted_image.AddRepresentation(canvas.ExtractImageRep());
       }
 
       temp_output[prs_id] = new gfx::Image(tinted_image);