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

ui/gfx/render_text.cc

Index: ui/gfx/render_text.cc
diff --git a/ui/gfx/render_text.cc b/ui/gfx/render_text.cc
index 9b172088ef28f24a54487eea6dc20b58634fba4c..c7871ee7a05ed4e1da574e2d6ffb1d6ca03e147a 100644
--- a/ui/gfx/render_text.cc
+++ b/ui/gfx/render_text.cc
@@ -762,7 +762,7 @@ void RenderText::Draw(Canvas* canvas) {
 
   if (clip_to_display_rect()) {
     Rect clip_rect(display_rect());
-    clip_rect.Inset(ShadowValue::GetMargin(text_shadows_));
+    clip_rect.Inset(ShadowValue::GetMargin(shadows_));
 
     canvas->Save();
     canvas->ClipRect(clip_rect);
@@ -873,10 +873,6 @@ SelectionModel RenderText::GetSelectionModelForSelectionStart() {
                         sel.is_reversed() ? CURSOR_BACKWARD : CURSOR_FORWARD);
 }
 
-void RenderText::SetTextShadows(const ShadowValues& shadows) {
-  text_shadows_ = shadows;
-}
-
 RenderText::RenderText()
     : horizontal_alignment_(base::i18n::IsRTL() ? ALIGN_RIGHT : ALIGN_LEFT),
       directionality_mode_(DIRECTIONALITY_FROM_TEXT),
@@ -1110,7 +1106,7 @@ void RenderText::ApplyFadeEffects(internal::SkiaTextRenderer* renderer) {
 }
 
 void RenderText::ApplyTextShadows(internal::SkiaTextRenderer* renderer) {
-  skia::RefPtr<SkDrawLooper> looper = CreateShadowDrawLooper(text_shadows_);
+  skia::RefPtr<SkDrawLooper> looper = CreateShadowDrawLooper(shadows_);
   renderer->SetDrawLooper(looper.get());
 }