Add separate LocalFileChangeTracer tests for Copy/Move

So that we can more explicitly test what changes we track for
Copy/Move operations.

BUG=none
TEST=LocalFileChangeTrackerTest.Restore*

Review URL: https://codereview.chromium.org/12330169

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@185163 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed