Remove --background-color-instead-of-checkerboard flag.

cc/layers/layer_unittest.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/layer.h"
 
 #include "cc/animation/keyframed_animation_curve.h"
 #include "cc/base/math_util.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/resources/layer_painter.h"
@@ skipping 546 matching lines @@
       gfx::Vector2d(10, 10)));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetShouldScrollOnMainThread(true));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetNonFastScrollableRegion(
       Region(gfx::Rect(1, 1, 2, 2))));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetHaveWheelEventHandlers(true));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetTransform(
       gfx::Transform(0.0, 0.0, 0.0, 0.0, 0.0, 0.0)));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetDoubleSided(false));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetTouchEventHandlerRegion(
       gfx::Rect(10, 10)));
-  EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetDrawCheckerboardForMissingTiles(
-      !test_layer->DrawCheckerboardForMissingTiles()));
+  EXPECT_SET_NEEDS_COMMIT(
+      1,
+      test_layer->SetDrawCheckerboardForMissingTiles(
+          !test_layer->draw_checkerboard_for_missing_tiles()));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetForceRenderSurface(true));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetHideLayerAndSubtree(true));
 
   EXPECT_SET_NEEDS_FULL_TREE_SYNC(1, test_layer->SetMaskLayer(
       dummy_layer1.get()));
   EXPECT_SET_NEEDS_FULL_TREE_SYNC(1, test_layer->SetReplicaLayer(
       dummy_layer2.get()));
 
   // The above tests should not have caused a change to the needs_display flag.
   EXPECT_FALSE(test_layer->NeedsDisplayForTesting());
@@ skipping 495 matching lines @@
               << "Flags: " << contents_opaque << ", " << layer_opaque << ", "
               << host_opaque << "\n";
         }
       }
     }
   }
 }
 
 }  // namespace
 }  // namespace cc