Allow background tab titles to use LCD AA.

ui/compositor/compositing_recorder.cc

Index: ui/compositor/compositing_recorder.cc
diff --git a/ui/compositor/compositing_recorder.cc b/ui/compositor/compositing_recorder.cc
index e103890968d072b979768df03863ac665d902714..842cc3a2ec330f953571e0874d11be3a5d5b43ff 100644
--- a/ui/compositor/compositing_recorder.cc
+++ b/ui/compositor/compositing_recorder.cc
@@ -13,7 +13,8 @@ namespace ui {
 
 CompositingRecorder::CompositingRecorder(const PaintContext& context,
                                          const gfx::Size& size_in_context,
-                                         uint8_t alpha)
+                                         uint8_t alpha,
+                                         bool lcd_text_requires_opaque_layer)
     : context_(context),
       bounds_in_layer_(context.ToLayerSpaceBounds(size_in_context)),
       saved_(alpha < 255) {
@@ -22,7 +23,8 @@ CompositingRecorder::CompositingRecorder(const PaintContext& context,
 
   context_.list_->CreateAndAppendItem<cc::CompositingDisplayItem>(
       bounds_in_layer_, alpha, SkXfermode::kSrcOver_Mode,
-      nullptr /* no bounds */, skia::RefPtr<SkColorFilter>());
+      nullptr /* no bounds */, skia::RefPtr<SkColorFilter>(),
+      lcd_text_requires_opaque_layer);
 }
 
 CompositingRecorder::~CompositingRecorder() {