[MediaGalleries] Add temp dir adjustment in windows unit test.

chrome/browser/storage_monitor/test_volume_mount_watcher_win.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // TestVolumeMountWatcherWin implementation.
 
 #include "chrome/browser/storage_monitor/test_volume_mount_watcher_win.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/storage_monitor/storage_info.h"
 
 namespace chrome {
 namespace test {
 
 namespace {
 
+base::FilePath GetTempRoot() {
+  base::ScopedTempDir temp_dir;
+  temp_dir.CreateUniqueTempDir();
+  base::FilePath temp_root = temp_dir.path();
+  while (temp_root.DirName() != temp_root)
+    temp_root = temp_root.DirName();
+  return temp_root;
+}
+
 std::vector<base::FilePath> FakeGetSingleAttachedDevice() {
   std::vector<base::FilePath> result;
   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(2));  // C
+
+  // Make sure we are adding the drive on which ScopedTempDir will make
+  // test directories.
+  base::FilePath temp_root = GetTempRoot();
+  if (temp_root != VolumeMountWatcherWin::DriveNumberToFilePath(2))
+    result.push_back(temp_root);
+
   return result;
 }
 
 std::vector<base::FilePath> FakeGetAttachedDevices() {
   std::vector<base::FilePath> result;
   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(0));  // A
   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(1));  // B
   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(2));  // C
   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(3));  // D
   result.push_back(VolumeMountWatcherWin::DriveNumberToFilePath(5));  // F
@@ skipping 12 matching lines @@
 
   // Truncate to root path.
   base::FilePath path(device_path);
   if (device_path.value().length() > 3)
     path = base::FilePath(device_path.value().substr(0, 3));
   if (path.value()[0] < L'A' || path.value()[0] > L'Z')
     return false;
 
   StorageInfo::Type type = StorageInfo::FIXED_MASS_STORAGE;
   if (path.value() != ASCIIToUTF16("N:\\") &&
-      path.value() != ASCIIToUTF16("C:\\")) {
+      path.value() != ASCIIToUTF16("C:\\") &&
+      path.value() != GetTempRoot().value()) {
     type = StorageInfo::REMOVABLE_MASS_STORAGE_WITH_DCIM;
   }
   std::string unique_id =
       "\\\\?\\Volume{00000000-0000-0000-0000-000000000000}\\";
   unique_id[11] = device_path.value()[0];
   std::string device_id = StorageInfo::MakeDeviceId(type, unique_id);
   string16 storage_label = path.Append(L" Drive").LossyDisplayName();
   *info = StorageInfo(device_id, string16(), path.value(), storage_label,
                       string16(), string16(), 1000000);
 
@@ skipping 66 matching lines @@
 
   return base::Bind(&FakeGetSingleAttachedDevice);
 }
 
 void TestVolumeMountWatcherWin::ShutdownWorkerPool() {
   device_info_worker_pool_->Shutdown();
 }
 
 }  // namespace test
 }  // namespace chrome