cc: Cleanup Layer::SetNeedsDisplayInRect

cc/layers/layer_unittest.cc

Index: cc/layers/layer_unittest.cc
diff --git a/cc/layers/layer_unittest.cc b/cc/layers/layer_unittest.cc
index bfbf15e2909dd733bb92f7ef675ef9ec567565b4..0d0e3f83ad91ab7ffe3ebb286de1acd9e87351f7 100644
--- a/cc/layers/layer_unittest.cc
+++ b/cc/layers/layer_unittest.cc
@@ -482,7 +482,13 @@ TEST_F(LayerTest, CheckSetNeedsDisplayCausesCorrectBehavior) {
   EXPECT_TRUE(test_layer->NeedsDisplayForTesting());
   test_layer->ResetNeedsDisplayForTesting();
 
-  // Case 3: SetNeedsDisplay() with a non-drawable layer
+  // Case 3: SetNeedsDisplay() with an empty rect.
+  test_layer->ResetNeedsDisplayForTesting();
+  EXPECT_FALSE(test_layer->NeedsDisplayForTesting());
+  EXPECT_SET_NEEDS_COMMIT(0, test_layer->SetNeedsDisplayRect(gfx::Rect()));
+  EXPECT_FALSE(test_layer->NeedsDisplayForTesting());
+
+  // Case 4: SetNeedsDisplay() with a non-drawable layer
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetIsDrawable(false));
   test_layer->ResetNeedsDisplayForTesting();
   EXPECT_FALSE(test_layer->NeedsDisplayForTesting());