[downloads] Move platform specific code out of DownloadTargetDeterminer.

chrome/browser/download/download_browsertest.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/download/download_browsertest.h"
 
 #include <stdint.h>
 #include <sstream>
 #include <utility>
 
@@ skipping 464 matching lines @@
     base::FilePath test_file_directory;
     PathService::Get(chrome::DIR_TEST_DATA, &test_file_directory);
     return test_file_directory;
   }
 
   base::FilePath GetDownloadsDirectory() {
     return downloads_directory_.GetPath();
   }
 
   // Location of the file source (the place from which it is downloaded).
-  base::FilePath OriginFile(base::FilePath file) {
+  base::FilePath OriginFile(const base::FilePath& file) {
     return test_dir_.Append(file);
   }
 
   // Location of the file destination (place to which it is downloaded).
-  base::FilePath DestinationFile(Browser* browser, base::FilePath file) {
+  base::FilePath DestinationFile(Browser* browser, const base::FilePath& file) {
     return GetDownloadDirectory(browser).Append(file.BaseName());
   }
 
   // Must be called after browser creation.  Creates a temporary
   // directory for downloads that is auto-deleted on destruction.
   // Returning false indicates a failure of the function, and should be asserted
   // in the caller.
   bool CreateAndSetDownloadsDirectory(Browser* browser) {
     if (!browser)
       return false;
@@ skipping 2369 matching lines @@
     // korean
     L"\u97d3-\u4e2d \uc815\uc0c1, \ucc9c\uc548\ud568 \uc758\uacac.zip",
     L"jiho....tiho...miho.zip",
     L"jiho!@#$tiho$%^&-()_+=miho copy.zip",  // special chars
     L"Wohoo-to hoo+I.zip",
     L"Picture 1.zip",
     L"This is a very very long english sentence with spaces and , and +.zip",
   };
 
   std::vector<DownloadItem*> download_items;
-  base::FilePath origin(FILE_PATH_LITERAL("origin"));
-  ASSERT_TRUE(base::CreateDirectory(DestinationFile(browser(), origin)));
+  base::FilePath origin_directory =
+      GetDownloadDirectory(browser()).Append(FILE_PATH_LITERAL("origin"));
+  ASSERT_TRUE(base::CreateDirectory(origin_directory));
 
   for (size_t index = 0; index < arraysize(kCrazyFilenames); ++index) {
+    SCOPED_TRACE(testing::Message() << "Index " << index);
     base::string16 crazy16;
     std::string crazy8;
     const wchar_t* crazy_w = kCrazyFilenames[index];
     ASSERT_TRUE(base::WideToUTF8(crazy_w, wcslen(crazy_w), &crazy8));
     ASSERT_TRUE(base::WideToUTF16(crazy_w, wcslen(crazy_w), &crazy16));
-    base::FilePath file_path(DestinationFile(browser(), origin.Append(
+    base::FilePath file_path(origin_directory.Append(
 #if defined(OS_WIN)
-            crazy16
+        crazy16
 #elif defined(OS_POSIX)
-            crazy8
+        crazy8
 #endif
-        )));
+        ));
 
     // Create the file.
     EXPECT_EQ(static_cast<int>(crazy8.size()),
               base::WriteFile(file_path, crazy8.c_str(), crazy8.size()));
     GURL file_url(net::FilePathToFileURL(file_path));
 
     // Download the file and check that the filename is correct.
     DownloadAndWait(browser(), file_url);
     GetDownloads(browser(), &download_items);
     ASSERT_EQ(1UL, download_items.size());
@@ skipping 56 matching lines @@
 // Timing out on ARM linux: http://crbug.com/238459
 #define MAYBE_DownloadTest_PercentComplete DISABLED_DownloadTest_PercentComplete
 #elif defined(OS_MACOSX)
 // Disable on mac: http://crbug.com/238831
 #define MAYBE_DownloadTest_PercentComplete DISABLED_DownloadTest_PercentComplete
 #else
 #define MAYBE_DownloadTest_PercentComplete DownloadTest_PercentComplete
 #endif
 IN_PROC_BROWSER_TEST_F(DownloadTest, MAYBE_DownloadTest_PercentComplete) {
   // Write a huge file.
-  base::FilePath file_path(DestinationFile(
-      browser(), base::FilePath(FILE_PATH_LITERAL("DownloadTest_BigZip.zip"))));
+  base::FilePath file_path(
+      GetDownloadDirectory(browser()).AppendASCII("source").AppendASCII(
+          "DownloadTest_BigZip.zip"));
+  ASSERT_TRUE(CreateDirectory(file_path.DirName()));
   base::File file(file_path, base::File::FLAG_CREATE | base::File::FLAG_WRITE);
   ASSERT_TRUE(file.IsValid());
   int64_t size = 1 << 25;
   EXPECT_EQ(1, file.Write(size, "a", 1));
   file.Close();
 
 #if defined(OS_POSIX)
   // Make it readable by chronos on chromeos
   base::SetPosixFilePermissions(file_path, 0755);
 #endif
@@ skipping 683 matching lines @@
           browser(), 1,
           content::DownloadTestObserver::ON_DANGEROUS_DOWNLOAD_DENY));
   ui_test_utils::NavigateToURL(browser(), extension_url);
 
   observer->WaitForFinished();
 
   // Download shelf should close.
   EXPECT_FALSE(browser()->window()->IsDownloadShelfVisible());
 }
 #endif  // defined(OS_CHROMEOS)