Revert of Drive: Let DriveUploader use batch request API.

google_apis/drive/drive_api_requests_unittest.cc

Index: google_apis/drive/drive_api_requests_unittest.cc
diff --git a/google_apis/drive/drive_api_requests_unittest.cc b/google_apis/drive/drive_api_requests_unittest.cc
index 9d69513615d9589b2c6d3f07a73bba1a878c2a76..d83292e988f9cdfd1ccc4de9ecf46857b78598ed 100644
--- a/google_apis/drive/drive_api_requests_unittest.cc
+++ b/google_apis/drive/drive_api_requests_unittest.cc
@@ -2015,12 +2015,9 @@
 }
 
 TEST_F(DriveApiRequestsTest, EmptyBatchUploadRequest) {
-  drive::BatchUploadRequest* const request =
-      new drive::BatchUploadRequest(request_sender_.get(), *url_generator_);
-  base::WeakPtr<drive::BatchUploadRequest> weak_ptr =
-      request->GetWeakPtrAsBatchUploadRequest();
-  request->Commit();
-  ASSERT_FALSE(weak_ptr.get());
+  scoped_ptr<drive::BatchUploadRequest> request(new drive::BatchUploadRequest(
+      request_sender_.get(), *url_generator_));
+  EXPECT_DEATH(request->Commit(), "");
 }
 
 TEST(ParseMultipartResponseTest, Empty) {