Update LocationBarView Background

ui/views/background.h

Index: ui/views/background.h
diff --git a/ui/views/background.h b/ui/views/background.h
index 8ecca6e285be1b53291a0ba78952842d1ce199c9..76e6af4833912396971c1eb2673ec81285e432d6 100644
--- a/ui/views/background.h
+++ b/ui/views/background.h
@@ -54,6 +54,14 @@ class VIEWS_EXPORT Background {
     return CreateSolidBackground(SkColorSetARGB(a, r, g, b));
   }
 
+  // Creates a background that paints a rectangle with color |background|. This
+  // will also paint a one pixel border around the rectangle of color |border|,
+  // accounting for the scaling of the canvas. If |round| the rectangle will
+  // have rounded corners.
+  static Background* CreateSolidScaledBackground(SkColor background,

[Peter Kasting, 2015/10/19 21:09:44]

Why put this here?  Are you going to be using it outside the location bar?  If
not, I would define your new background class in the .cc file that uses it.

[Evan Stade, 2015/10/19 23:21:30]

The plan is to use it for chips as well (e.g. ev_bubble_view), but I agree it
could live in c/b/u/v/location_bar/ (probably its own file).

[Peter Kasting, 2015/10/19 23:32:23]

Ah, helpful.  Yeah, I would probably avoid touching ui/ unless you're adding
stuff that will be used outside of chrome/.

I would probably also give thought to a different name here, e.g. something
around "BackgroundWith1PxBorder" or some other phrase that emphasizes the
"background and border" nature of this.

[jonross, 2015/10/20 18:54:54]

Evan was going to use this for the omnibox chips

+                                                 SkColor border,
+                                                 bool round);
+
   // Creates a background that contains a vertical gradient that varies
   // from |color1| to |color2|
   static Background* CreateVerticalGradientBackground(SkColor color1,