Revert of Move gpu memory calculations to Compositor.

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 a67f6b06eec893d9c1a6b9d2cdb8d7f610c16ed4..20bfdfefa6541ef43c1547b7351a58d7cf6c4600 100644
--- a/cc/raster/tile_task_worker_pool_perftest.cc
+++ b/cc/raster/tile_task_worker_pool_perftest.cc
@@ -98,6 +98,8 @@ class PerfContextProvider : public ContextProvider {
   base::Lock* GetLock() override { return &context_lock_; }
   void DeleteCachedResources() override {}
   void SetLostContextCallback(const LostContextCallback& cb) override {}
+  void SetMemoryPolicyChangedCallback(
+      const MemoryPolicyChangedCallback& cb) override {}
 
  private:
   ~PerfContextProvider() override {}