Plumb can_use_lcd_text, contents_opaque directly to ContentLayerClient.

cc/trees/layer_tree_host_pixeltest_masks.cc

Index: cc/trees/layer_tree_host_pixeltest_masks.cc
diff --git a/cc/trees/layer_tree_host_pixeltest_masks.cc b/cc/trees/layer_tree_host_pixeltest_masks.cc
index f4f174c49817b525ee1b04edd386e7d4b31e4f8c..ed13cd7c4bdd79c42b0ef171ab78f45b71be712b 100644
--- a/cc/trees/layer_tree_host_pixeltest_masks.cc
+++ b/cc/trees/layer_tree_host_pixeltest_masks.cc
@@ -24,13 +24,13 @@ class MaskContentLayerClient : public ContentLayerClient {
   explicit MaskContentLayerClient(const gfx::Size& bounds) : bounds_(bounds) {}
   ~MaskContentLayerClient() override {}
 
-  void DidChangeLayerCanUseLCDText() override {}
-
   bool FillsBoundsCompletely() const override { return false; }
 
   void PaintContents(
       SkCanvas* canvas,
       const gfx::Rect& rect,
+      bool can_use_lcd_text,
+      bool contents_opaque,
       ContentLayerClient::GraphicsContextStatus gc_status) override {
     SkPaint paint;
     paint.setStyle(SkPaint::kStroke_Style);
@@ -91,6 +91,8 @@ TEST_P(LayerTreeHostMasksPixelTest, ImageMaskOfLayer) {
   MaskContentLayerClient client(mask_bounds);
   client.PaintContents(&canvas,
                        gfx::Rect(mask_bounds),
+                       false,
+                       false,
                        ContentLayerClient::GRAPHICS_CONTEXT_ENABLED);
   mask->SetBitmap(bitmap);