Refactor views::Label and gfx::RenderText shadow functions.

ui/views/examples/label_example.cc

Index: ui/views/examples/label_example.cc
diff --git a/ui/views/examples/label_example.cc b/ui/views/examples/label_example.cc
index a4a91133f2fab1d081161c4df8269f18db48971b..885a182a2185ca8a32bed314c37fac4c3e2bf074 100644
--- a/ui/views/examples/label_example.cc
+++ b/ui/views/examples/label_example.cc
@@ -64,8 +64,8 @@ void LabelExample::CreateExampleView(View* container) {
 
   label = new Label(ASCIIToUTF16("A Courier-18 label with a halo and shadow."));
   label->SetFontList(gfx::FontList("Courier, 18px"));
-  label->SetShadowColors(SK_ColorGRAY, SK_ColorLTGRAY);
-  label->SetShadowOffset(2, 2);
+  label->set_shadows(gfx::ShadowValues(1,
+      gfx::ShadowValue(gfx::Point(2, 2), 0, SK_ColorGRAY)));
   label->set_halo_color(SK_ColorGREEN);
   container->AddChildView(label);