Re-land: cc: Use worker context for one-copy tile initialization.

cc/raster/tile_task_worker_pool_unittest.cc

Index: cc/raster/tile_task_worker_pool_unittest.cc
diff --git a/cc/raster/tile_task_worker_pool_unittest.cc b/cc/raster/tile_task_worker_pool_unittest.cc
index 6038b00e89bdb1d543ca64f72643fa0f5fe6e0fa..bf2a82a374704a74a84f782fce92ef280b209345 100644
--- a/cc/raster/tile_task_worker_pool_unittest.cc
+++ b/cc/raster/tile_task_worker_pool_unittest.cc
@@ -41,6 +41,7 @@ namespace {
 
 const size_t kMaxTransferBufferUsageBytes = 10000U;
 const size_t kMaxBytesPerCopyOperation = 1000U;
+const size_t kMaxStagingBuffers = 32U;
 
 // A resource of this dimension^2 * 4 must be greater than the above transfer
 // buffer constant.
@@ -165,12 +166,10 @@ class TileTaskWorkerPoolTest
         break;
       case TILE_TASK_WORKER_POOL_TYPE_ONE_COPY:
         Create3dOutputSurfaceAndResourceProvider();
-        staging_resource_pool_ = ResourcePool::Create(resource_provider_.get(),
-                                                      GL_TEXTURE_2D);
         tile_task_worker_pool_ = OneCopyTileTaskWorkerPool::Create(
             base::ThreadTaskRunnerHandle::Get().get(), &task_graph_runner_,
             context_provider_.get(), resource_provider_.get(),
-            staging_resource_pool_.get(), kMaxBytesPerCopyOperation, false);
+            kMaxBytesPerCopyOperation, false, kMaxStagingBuffers);
         break;
       case TILE_TASK_WORKER_POOL_TYPE_GPU:
         Create3dOutputSurfaceAndResourceProvider();
@@ -332,7 +331,6 @@ class TileTaskWorkerPoolTest
   FakeOutputSurfaceClient output_surface_client_;
   scoped_ptr<FakeOutputSurface> output_surface_;
   scoped_ptr<ResourceProvider> resource_provider_;
-  scoped_ptr<ResourcePool> staging_resource_pool_;
   scoped_ptr<TileTaskWorkerPool> tile_task_worker_pool_;
   TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
   TestSharedBitmapManager shared_bitmap_manager_;