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The implementation of this method is basically noop in platforms other than ios and it is put in the header file; this change adds inline annotation to avoid duplicate symbol link error on other platforms.

BUG=NONE


Review URL: https://chromiumcodereview.appspot.com/10837182

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@150831 0039d316-1c4b-4281-b951-d872f2087c98