cc: Remove texture scaling and clear edge texels of a layer.

cc/picture_pile_impl.h

Index: cc/picture_pile_impl.h
diff --git a/cc/picture_pile_impl.h b/cc/picture_pile_impl.h
index 157f9e21e6280d5a7a8ae423145caa45d92af43b..7eea998c988f16e2319af6c4434963a39698e2f3 100644
--- a/cc/picture_pile_impl.h
+++ b/cc/picture_pile_impl.h
@@ -32,7 +32,7 @@ class CC_EXPORT PicturePileImpl : public PicturePileBase {
   // It is assumed that contentsScale has already been applied to this canvas.
   void Raster(
       SkCanvas* canvas,
-      gfx::Rect content_rect,
+      gfx::Rect canvas_rect,
       float contents_scale,
       int64* total_pixels_rasterized);