Disable "using base::FilePath" on Linux since it now compiles.

chrome/browser/chromeos/drive/drive_scheduler_unittest.cc

Index: chrome/browser/chromeos/drive/drive_scheduler_unittest.cc
diff --git a/chrome/browser/chromeos/drive/drive_scheduler_unittest.cc b/chrome/browser/chromeos/drive/drive_scheduler_unittest.cc
index d99158809b261501123d6d42968193f0772e0e9e..becfcdc5329097ece4bf51388d450b5c43198bd3 100644
--- a/chrome/browser/chromeos/drive/drive_scheduler_unittest.cc
+++ b/chrome/browser/chromeos/drive/drive_scheduler_unittest.cc
@@ -403,11 +403,12 @@ TEST_F(DriveSchedulerTest, DownloadFileCellularDisabled) {
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   const GURL kContentUrl("https://file_content_url/");
-  const FilePath kOutputFilePath = temp_dir.path().AppendASCII("whatever.txt");
+  const base::FilePath kOutputFilePath =
+      temp_dir.path().AppendASCII("whatever.txt");
   google_apis::GDataErrorCode download_error = google_apis::GDATA_OTHER_ERROR;
-  FilePath output_file_path;
+  base::FilePath output_file_path;
   scheduler_->DownloadFile(
-      FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
+      base::FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
       kOutputFilePath,
       kContentUrl,
       DriveClientContext(BACKGROUND),
@@ -460,11 +461,12 @@ TEST_F(DriveSchedulerTest, DownloadFileWimaxDisabled) {
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   const GURL kContentUrl("https://file_content_url/");
-  const FilePath kOutputFilePath = temp_dir.path().AppendASCII("whatever.txt");
+  const base::FilePath kOutputFilePath =
+      temp_dir.path().AppendASCII("whatever.txt");
   google_apis::GDataErrorCode download_error = google_apis::GDATA_OTHER_ERROR;
-  FilePath output_file_path;
+  base::FilePath output_file_path;
   scheduler_->DownloadFile(
-      FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
+      base::FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
       kOutputFilePath,
       kContentUrl,
       DriveClientContext(BACKGROUND),
@@ -517,11 +519,12 @@ TEST_F(DriveSchedulerTest, DownloadFileCellularEnabled) {
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   const GURL kContentUrl("https://file_content_url/");
-  const FilePath kOutputFilePath = temp_dir.path().AppendASCII("whatever.txt");
+  const base::FilePath kOutputFilePath =
+      temp_dir.path().AppendASCII("whatever.txt");
   google_apis::GDataErrorCode download_error = google_apis::GDATA_OTHER_ERROR;
-  FilePath output_file_path;
+  base::FilePath output_file_path;
   scheduler_->DownloadFile(
-      FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
+      base::FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
       kOutputFilePath,
       kContentUrl,
       DriveClientContext(BACKGROUND),
@@ -566,11 +569,12 @@ TEST_F(DriveSchedulerTest, DownloadFileWimaxEnabled) {
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
   const GURL kContentUrl("https://file_content_url/");
-  const FilePath kOutputFilePath = temp_dir.path().AppendASCII("whatever.txt");
+  const base::FilePath kOutputFilePath =
+      temp_dir.path().AppendASCII("whatever.txt");
   google_apis::GDataErrorCode download_error = google_apis::GDATA_OTHER_ERROR;
-  FilePath output_file_path;
+  base::FilePath output_file_path;
   scheduler_->DownloadFile(
-      FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
+      base::FilePath::FromUTF8Unsafe("/drive/whatever.txt"),  // virtual path
       kOutputFilePath,
       kContentUrl,
       DriveClientContext(BACKGROUND),