Don't create new maps in CurrentMapForDeprecated.

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15358005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14728 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Disable flaky test after r14723.

R=svenpanne@chromium.org
BUG=v8:2628
TEST=cctest/test-cpu-profiler/SampleWhenFrameIsNotSetup

Review URL: https://codereview.chromium.org/15415007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@14729 ce2b1a6d-e550-0410-aec6-3dcde31c8c00