cc: Simplify the logic for deciding to update tile priorities.

cc/trees/occlusion_tracker_unittest.cc

 // Copyright 2012 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/trees/occlusion_tracker.h"
 
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/base/math_util.h"
 #include "cc/debug/overdraw_metrics.h"
 #include "cc/layers/layer.h"
@@ skipping 303 matching lines @@
     DCHECK(!root->render_surface());
 
     LayerTreeHostCommon::CalculateDrawProperties(
         root,
         root->bounds(),
         1.f,
         1.f,
         NULL,
         dummy_max_texture_size,
         false,
-        &render_surface_layer_list_impl_,
-        false);
+        &render_surface_layer_list_impl_);
 
     layer_iterator_ = layer_iterator_begin_ =
         Types::TestLayerIterator::Begin(&render_surface_layer_list_impl_);
   }
 
   void CalcDrawEtc(TestContentLayer* root) {
     DCHECK(root == root_.get());
     int dummy_max_texture_size = 512;
 
     DCHECK(!root->render_surface());
@@ skipping 4471 matching lines @@
               occlusion.occlusion_from_outside_target().ToString());
     EXPECT_EQ(gfx::Rect(10, 10, 50, 50).ToString(),
               occlusion.occlusion_from_inside_target().ToString());
   }
 };
 
 ALL_OCCLUSIONTRACKER_TEST(OcclusionTrackerTestScaledLayerInSurfaceIsClipped)
 
 }  // namespace
 }  // namespace cc