cc : Compute visible rects dynamically (1)

cc/trees/layer_tree_host_impl_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/trees/layer_tree_host_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 98 matching lines @@
         reduce_memory_result_(true) {
     media::InitializeMediaLibrary();
   }
 
   LayerTreeSettings DefaultSettings() {
     LayerTreeSettings settings;
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.renderer_settings.texture_id_allocation_chunk_size = 1;
     settings.gpu_rasterization_enabled = true;
     settings.verify_clip_tree_calculations = true;
+    settings.verify_visible_rect_calculations = true;
     settings.verify_transform_tree_calculations = true;
     settings.renderer_settings.buffer_to_texture_target_map =
         DefaultBufferToTextureTargetMapForTesting();
     return settings;
   }
 
   void SetUp() override {
     CreateHostImpl(DefaultSettings(), CreateCompositorFrameSink());
   }
 
@@ skipping 11129 matching lines @@
   EXPECT_TRUE(host_impl_->use_gpu_rasterization());
 
   // Re-initialize with a software output surface.
   compositor_frame_sink_ = FakeCompositorFrameSink::CreateSoftware();
   host_impl_->InitializeRenderer(compositor_frame_sink_.get());
   EXPECT_FALSE(host_impl_->use_gpu_rasterization());
 }
 
 }  // namespace
 }  // namespace cc