Remove uses of deprecated version of FileUtil::PathExists() in the installer....

Remove uses of deprecated version of FileUtil::PathExists() in the installer.

BUG=None
TEST=run installer_util_unittests.exe

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=24320

[tfarina (gmail-do not use), 2009-08-25 00:23:04]

Ping

[Lei Zhang, 2009-08-25 00:31:31]

On 2009/08/25 00:23:04, tfarina wrote:
> Ping

Sorry, I haven't gotten around to it yet. Feel free to ask another reviewer in
case I forget.

[Lei Zhang, 2009-08-25 00:56:31]

Look mostly good.

http://codereview.chromium.org/174189/diff/1/2
File chrome/installer/util/copy_tree_work_item_unittest.cc (right):

http://codereview.chromium.org/174189/diff/1/2#newcode350
Line 350: << exe_full_path.value() << " to "  << file_name_to.value();
nit: extra space.

http://codereview.chromium.org/174189/diff/1/2#newcode525
Line 525: FilePath exe_full_path(wstring_exe_full_path);
Why do you need wstring_exe_full_path ?

http://codereview.chromium.org/174189/diff/1/5
File chrome/installer/util/delete_tree_work_item_unittest.cc (right):

http://codereview.chromium.org/174189/diff/1/5#newcode189
Line 189: FilePath exe_full_path(wstring_exe_full_path);
Again, why wstring_exe_full_path, does FilePath
exe_full_path(exe_full_path_str); not work?

[tfarina (gmail-do not use), 2009-08-25 01:27:37]

http://codereview.chromium.org/174189/diff/1/5
File chrome/installer/util/delete_tree_work_item_unittest.cc (right):

http://codereview.chromium.org/174189/diff/1/5#newcode189
Line 189: FilePath exe_full_path(wstring_exe_full_path);
On 2009/08/25 00:56:31, Lei Zhang wrote:
> Again, why wstring_exe_full_path, does FilePath
> exe_full_path(exe_full_path_str); not work?
Right, I thought that would not work, so I didn't test this possibility.
Done.

[Lei Zhang, 2009-08-25 18:42:41]

LGTM

I will commit on your behalf later today unless you say otherwise.