Added preliminary support for tile rasterization with Ganesh

cc/resources/tile_manager_unittest.cc

 // Copyright 2013 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/resources/tile.h"
 #include "cc/resources/tile_priority.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_picture_pile_impl.h"
 #include "cc/test/fake_tile_manager.h"
@@ skipping 515 matching lines @@
   // Allocated bytes should never be more than the memory limit.
   EXPECT_LE(memory_allocated_bytes, global_state_.memory_limit_in_bytes);
 }
 
 // If true, the max tile limit should be applied as bytes; if false,
 // as num_resources_limit.
 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