Fixes bug in showing accelerators where on views/gtk where we would incorrectly show the ampersand character in some situations, and in others show the underline when we shouldn't have.
Fixes bug in showing accelerators where on views/gtk where we would
incorrectly show the ampersand character in some situations, and in
others show the underline when we shouldn't have.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/2870032

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@51176 0039d316-1c4b-4281-b951-d872f2087c98

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