Added CERES_ prefix to the DISALLOW macros.

Change-Id: Ib81e9112e8bbc6ed6cb52f21825df0f6e659be51
diff --git a/internal/ceres/block_random_access_sparse_matrix.h b/internal/ceres/block_random_access_sparse_matrix.h
index 12613c3..27e30a7 100644
--- a/internal/ceres/block_random_access_sparse_matrix.h
+++ b/internal/ceres/block_random_access_sparse_matrix.h
@@ -100,7 +100,7 @@
   // The underlying matrix object which actually stores the cells.
   scoped_ptr<TripletSparseMatrix> tsm_;
 
-  DISALLOW_COPY_AND_ASSIGN(BlockRandomAccessSparseMatrix);
+  CERES_DISALLOW_COPY_AND_ASSIGN(BlockRandomAccessSparseMatrix);
 };
 
 }  // namespace internal