[Mac] Website settings: Implement custom tab appearance.

chrome/browser/ui/cocoa/info_bubble_view.mm

Index: chrome/browser/ui/cocoa/info_bubble_view.mm
diff --git a/chrome/browser/ui/cocoa/info_bubble_view.mm b/chrome/browser/ui/cocoa/info_bubble_view.mm
index a82e0405b90fe3507e4f2f7523493411f2bb709f..bd49e0dc7a422d45c9bef564a5268c300d19ee79 100644
--- a/chrome/browser/ui/cocoa/info_bubble_view.mm
+++ b/chrome/browser/ui/cocoa/info_bubble_view.mm
@@ -11,11 +11,13 @@
 
 @synthesize arrowLocation = arrowLocation_;
 @synthesize alignment = alignment_;
+@synthesize backgroundColor = backgroundColor_;
 
 - (id)initWithFrame:(NSRect)frameRect {
   if ((self = [super initWithFrame:frameRect])) {
     arrowLocation_ = info_bubble::kTopLeft;
     alignment_ = info_bubble::kAlignArrowToAnchor;
+    [self setBackgroundColor:[NSColor colorWithCalibratedWhite:1.0 alpha:0.9]];
   }
   return self;
 }
@@ -62,7 +64,7 @@
   [bezier lineToPoint:NSMakePoint(arrowStart.x + info_bubble::kBubbleArrowWidth,
                                   arrowStart.y)];
   [bezier closePath];
-  [[NSColor colorWithCalibratedWhite:1.0 alpha:0.9] set];
+  [backgroundColor_ set];
   [bezier fill];
 }