Renames the function CreateTemporaryFilename to CreateTemporaryFile and track down all callers, also removes the
deprecated function that uses std::wstring.

BUG=3078 (http://crbug.com/3078)
TEST=run base_unittests, installer_util_unittests, net_unittests, setup_unittests, and unit_tests.

Review URL: http://codereview.chromium.org/164537
Patch from Thiago Farina.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@23631 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/net/base/file_stream_unittest.cc b/net/base/file_stream_unittest.cc
index f430d8e..76909eb 100644
--- a/net/base/file_stream_unittest.cc
+++ b/net/base/file_stream_unittest.cc
@@ -21,7 +21,7 @@
   virtual void SetUp() {
     PlatformTest::SetUp();
 
-    file_util::CreateTemporaryFileName(&temp_file_path_);
+    file_util::CreateTemporaryFile(&temp_file_path_);
     file_util::WriteFile(temp_file_path_.ToWStringHack(),
                          kTestData, kTestDataSize);
   }