Change system level background from red to black.

BUG=137342
TEST=none
R=ben@chromium.org
TBR=ben@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10872098

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@153576 0039d316-1c4b-4281-b951-d872f2087c98

ash/wm/workspace/system_background_controller.cc

@@ -54,7 +54,7 @@ views::View* SystemBackgroundController::View::GetContentsView() {
 
 void SystemBackgroundController::View::OnPaint(gfx::Canvas* canvas) {
   // TODO: get image!
-  canvas->DrawColor(SK_ColorRED);
+  canvas->DrawColor(SK_ColorBLACK);
 }
 
 SystemBackgroundController::SystemBackgroundController(aura::RootWindow* root)