Move gpu memory calculations to Compositor.

cc/tiles/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 "base/run_loop.h"
 #include "base/thread_task_runner_handle.h"
 #include "cc/playback/display_list_raster_source.h"
 #include "cc/playback/display_list_recording_source.h"
 #include "cc/raster/raster_buffer.h"
 #include "cc/resources/resource_pool.h"
@@ skipping 1345 matching lines @@
 
   Resource* resource = host_impl_.resource_pool()->AcquireResource(
       gfx::Size(256, 256), RGBA_8888);
 
   host_impl_.tile_manager()->CheckIfMoreTilesNeedToBePreparedForTesting();
   EXPECT_FALSE(host_impl_.is_likely_to_require_a_draw());
 
   host_impl_.resource_pool()->ReleaseResource(resource, 0);
 }
 
+TEST_F(TileManagerTilePriorityQueueTest, DefaultMemoryPolicy) {
+  const gfx::Size layer_bounds(1000, 1000);
+  host_impl_.SetViewportSize(layer_bounds);
+  SetupDefaultTrees(layer_bounds);
+
+  host_impl_.tile_manager()->PrepareTiles(host_impl_.global_tile_state());
+
+  // 64MB is the default mem limit.
+  EXPECT_EQ(67108864u,
+            host_impl_.global_tile_state().hard_memory_limit_in_bytes);
+  EXPECT_EQ(TileMemoryLimitPolicy::ALLOW_ANYTHING,
+            host_impl_.global_tile_state().memory_limit_policy);
+  EXPECT_EQ(ManagedMemoryPolicy::kDefaultNumResourcesLimit,
+            host_impl_.global_tile_state().num_resources_limit);
+}
+
 TEST_F(TileManagerTilePriorityQueueTest, RasterQueueAllUsesCorrectTileBounds) {
   // Verify that we use the real tile bounds when advancing phases during the
   // tile iteration.
   gfx::Size layer_bounds(1, 1);
 
   scoped_refptr<FakeDisplayListRasterSource> raster_source =
       FakeDisplayListRasterSource::CreateFilled(layer_bounds);
 
   FakePictureLayerTilingClient pending_client;
   pending_client.SetTileSize(gfx::Size(64, 64));
@@ skipping 272 matching lines @@
   EXPECT_FALSE(host_impl_->resource_pool()->TryAcquireResourceWithContentId(
       invalidated_id));
 
   // Free our host_impl_ before the cancelling_runner we passed it, as it will
   // use that class in clean up.
   host_impl_ = nullptr;
 }
 
 }  // namespace
 }  // namespace cc