athena: Set a default background for the window title.

athena/content/web_activity.cc

Index: athena/content/web_activity.cc
diff --git a/athena/content/web_activity.cc b/athena/content/web_activity.cc
index 8ec8b530ca89ed197f838604ab55b912304207b9..0a5e0b5a1140ed5f33bfa0d77328fd9146cecbda 100644
--- a/athena/content/web_activity.cc
+++ b/athena/content/web_activity.cc
@@ -349,11 +349,11 @@ void WebActivity::Init() {
 
 SkColor WebActivity::GetRepresentativeColor() const {
   // TODO(sad): Compute the color from the favicon.
-  return SK_ColorGRAY;
+  return web_view_ ? SK_ColorGRAY : SkColorSetRGB(0xbb, 0x77, 0x77);
 }
 
 base::string16 WebActivity::GetTitle() const {
-  return web_view_->GetWebContents()->GetTitle();
+  return web_view_ ? web_view_->GetWebContents()->GetTitle() : base::string16();
 }
 
 bool WebActivity::UsesFrame() const {