Reland of cc: Add mailbox support to ResourceProvider write locks.

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 <stddef.h>
 #include <stdint.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 1793 matching lines @@
       uint64_t resource_content_id,
       uint64_t previous_content_id) override {
     EXPECT_EQ(expected_resource_id_, resource_content_id);
     return nullptr;
   }
 
  private:
   uint64_t expected_resource_id_;
 };
 
-class VerifyResourceContentIdTileTaskManager : public FakeTileTaskManagerImpl {
- public:
-  explicit VerifyResourceContentIdTileTaskManager(uint64_t expected_resource_id)
-      : FakeTileTaskManagerImpl(base::WrapUnique<RasterBufferProvider>(
-            new VerifyResourceContentIdRasterBufferProvider(
-                expected_resource_id))) {}
-  ~VerifyResourceContentIdTileTaskManager() override {}
-};
-
 // Runs a test to ensure that partial raster is either enabled or disabled,
 // depending on |partial_raster_enabled|'s value. Takes ownership of host_impl
 // so that cleanup order can be controlled.
 void RunPartialRasterCheck(std::unique_ptr<LayerTreeHostImpl> host_impl,
                            bool partial_raster_enabled) {
   // Pick arbitrary IDs - they don't really matter as long as they're constant.
   const int kLayerId = 7;
   const uint64_t kInvalidatedId = 43;
   const uint64_t kExpectedId = partial_raster_enabled ? kInvalidatedId : 0u;
   const gfx::Size kTileSize(128, 128);
 
   // Create a VerifyResourceContentIdTileTaskManager to ensure that the
   // raster task we see is created with |kExpectedId|.
-  VerifyResourceContentIdTileTaskManager verifying_task_manager(kExpectedId);
-  host_impl->tile_manager()->SetTileTaskManagerForTesting(
-      &verifying_task_manager);
+  FakeTileTaskManagerImpl tile_task_manager;
+  host_impl->tile_manager()->SetTileTaskManagerForTesting(&tile_task_manager);
+
+  VerifyResourceContentIdRasterBufferProvider raster_buffer_provider(
+      kExpectedId);
+  host_impl->tile_manager()->SetRasterBufferProviderForTesting(
+      &raster_buffer_provider);
 
   // Ensure there's a resource with our |kInvalidatedId| in the resource pool.
   host_impl->resource_pool()->ReleaseResource(
       host_impl->resource_pool()->AcquireResource(kTileSize, RGBA_8888),
       kInvalidatedId);
   host_impl->resource_pool()->CheckBusyResources();
 
   scoped_refptr<FakeRasterSource> pending_raster_source =
       FakeRasterSource::CreateFilled(kTileSize);
   host_impl->CreatePendingTree();
@@ skipping 37 matching lines @@
 }
 
 // Ensures that the tile manager does not attempt to reuse tiles when partial
 // raster is disabled.
 TEST_F(TileManagerTest, PartialRasterSuccessfullyDisabled) {
   RunPartialRasterCheck(TakeHostImpl(), false /* partial_raster_enabled */);
 }
 
 }  // namespace
 }  // namespace cc