Brief white flickering when transitioning from boot splash to Chrome animation

ash/desktop_background/desktop_background_controller.cc

Index: ash/desktop_background/desktop_background_controller.cc
diff --git a/ash/desktop_background/desktop_background_controller.cc b/ash/desktop_background/desktop_background_controller.cc
index de3a1211b8871c2f4fdcb0b1e7ad644799172445..51c2d29b3fad7953cf97430df9ed4cf80afe3dee 100644
--- a/ash/desktop_background/desktop_background_controller.cc
+++ b/ash/desktop_background/desktop_background_controller.cc
@@ -28,6 +28,7 @@ namespace {
 
 const int kSmallWallpaperMaximalWidth = 1366;
 const int kSmallWallpaperMaximalHeight = 800;
+const SkColor kTransparentColor = SkColorSetARGB(0x00, 0x00, 0x00, 0x00);
 
 internal::RootWindowLayoutManager* GetRootWindowLayoutManager(
     aura::RootWindow* root_window) {
@@ -103,7 +104,7 @@ class DesktopBackgroundController::WallpaperOperation
 DesktopBackgroundController::DesktopBackgroundController()
     : locked_(false),
       desktop_background_mode_(BACKGROUND_SOLID_COLOR),
-      background_color_(SK_ColorGRAY),
+      background_color_(kTransparentColor),
       weak_ptr_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
   InstallComponentForAllWindows();
 }