Support multiple TTS voices on Windows.

BUG=88059

Review URL: https://codereview.chromium.org/97793002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240810 0039d316-1c4b-4281-b951-d872f2087c98
Fix setting the user image to the profile image and re-enable tests

This CL ensures that the user is able to set the user image to the profile
image and re-enables the corresponding tests.

BUG=321208
TEST=browser tests

Review URL: https://codereview.chromium.org/112503003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@240811 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 240810
SVN changes up to revision 240811