Added preliminary support for tile rasterization with Ganesh

cc/resources/tile_manager_unittest.cc

Index: cc/resources/tile_manager_unittest.cc
diff --git a/cc/resources/tile_manager_unittest.cc b/cc/resources/tile_manager_unittest.cc
index fd74c3f01eef3dbf359544554b009a4453fb2060..13c08ce23b63970c0df1a579de94c590ba7c109b 100644
--- a/cc/resources/tile_manager_unittest.cc
+++ b/cc/resources/tile_manager_unittest.cc
@@ -533,6 +533,21 @@ INSTANTIATE_TEST_CASE_P(TileManagerTests,
                         TileManagerTest,
                         ::testing::Values(true, false));
 
+TEST_P(TileManagerTest, TileManagerGpuRasterizationRouting) {
+  // Ensure that tiles marked for gpu rasterization
+  // get sent to the GpuRasterizer.
+
+  Initialize(3, ALLOW_ABSOLUTE_MINIMUM, SMOOTHNESS_TAKES_PRIORITY);
+  TileVector active_now =
+      CreateTiles(3, TilePriorityForNowBin(), TilePriority());
+  active_now[0]->set_use_gpu_rasterizer(true);
+  active_now[1]->set_use_gpu_rasterizer(true);
+
+  tile_manager()->ManageTiles(global_state_);
+  EXPECT_EQ(2, tile_manager()->CompletedGpuRasterizedTiles());
+  tile_manager()->CheckForCompletedTasks();
+}
+
 }  // namespace
 }  // namespace cc