cc: Partial tile update for one-copy raster.

cc/raster/tile_task_worker_pool_perftest.cc

Index: cc/raster/tile_task_worker_pool_perftest.cc
diff --git a/cc/raster/tile_task_worker_pool_perftest.cc b/cc/raster/tile_task_worker_pool_perftest.cc
index 508f966eeb7b79639e05975be33b9ec8bd31c2eb..ea7c2c11ff5386ba6afde5fc480917bdcd2f7421 100644
--- a/cc/raster/tile_task_worker_pool_perftest.cc
+++ b/cc/raster/tile_task_worker_pool_perftest.cc
@@ -160,7 +160,10 @@ class PerfRasterTaskImpl : public RasterTask {
 
   // Overridden from TileTask:
   void ScheduleOnOriginThread(TileTaskClient* client) override {
-    raster_buffer_ = client->AcquireBufferForRaster(resource());
+    // No tile ids are given to support partial updates, so no dirty rect is
+    // needed.
+    TileTaskData data(resource(), 0, 0, gfx::Rect());
+    raster_buffer_ = client->AcquireBufferForRaster(data);
   }
   void CompleteOnOriginThread(TileTaskClient* client) override {
     client->ReleaseBufferForRaster(raster_buffer_.Pass());