Run all LayerTreeHost tests with a delegating renderer.

cc/layers/texture_layer_unittest.cc

Index: cc/layers/texture_layer_unittest.cc
diff --git a/cc/layers/texture_layer_unittest.cc b/cc/layers/texture_layer_unittest.cc
index 55b4c738d22656ee99fdf9731f1040d14bd59391..ff204d687158137246e5aef4f1a18da0d386ce4a 100644
--- a/cc/layers/texture_layer_unittest.cc
+++ b/cc/layers/texture_layer_unittest.cc
@@ -402,7 +402,8 @@ class TextureLayerImplWithMailboxThreadedCallback : public LayerTreeTest {
   scoped_refptr<TextureLayer> layer_;
 };
 
-SINGLE_AND_MULTI_THREAD_TEST_F(TextureLayerImplWithMailboxThreadedCallback);
+SINGLE_AND_MULTI_THREAD_DIRECT_RENDERER_TEST_F(
+    TextureLayerImplWithMailboxThreadedCallback);
 
 class TextureLayerImplWithMailboxTest : public TextureLayerTest {
  protected:
@@ -623,7 +624,9 @@ class TextureLayerClientTest
   unsigned expected_used_textures_on_commit_;
 };
 
-SINGLE_AND_MULTI_THREAD_TEST_F(TextureLayerClientTest);
+// The TextureLayerClient does not use mailboxes, so can't use a delegating
+// renderer.
+SINGLE_AND_MULTI_THREAD_DIRECT_RENDERER_TEST_F(TextureLayerClientTest);
 
 }  // namespace
 }  // namespace cc